| 单词 | lamella |
| 例句 | The lamellae surrounding the Haversian canal resemble tree rings. Fundamentals of Biology 2015-01-01T00:00:00Z A blood vessel and a nerve are found in the center of the structure within the Haversian canal, with radiating circles of lacunae around it known as lamellae. Biology for AP Courses 2022-06-09T00:00:00Z But the disk couldn’t suction with individual lamellae, making it vulnerable to falling off. This little bot can hitchhike, swim, and swoop with ease 2022-05-19T04:00:00Z Then liquid drains from the thin membranes, known as lamellae, that encase the individual bubbles until one of those lamellae thins too much to support the bubble. Physics Gets Frothy as Mathematicians Dissect Mister Bubble [Video] 2013-05-09T19:45:00.343Z The remora's suction disc, with its numerous lamellae. How the sharksucker got its suction disc 2013-02-04T15:45:05.517Z Lacunae are wide spaces in the rings between the lamellae. Fundamentals of Biology 2015-01-01T00:00:00Z Each osteon consists of lamellae, which are layers of compact matrix that surround a central canal called the Haversian canal. Biology for AP Courses 2022-06-09T00:00:00Z Gills or branchiae may be developed by parts of an appendage becoming thin-walled and vascular and either expanded into a thin lamella or ramified. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z The microscopic thinning of a bubble’s lamellae, for example, takes place very slowly, sometimes over hundreds of seconds, explains study co-author James Sethian, professor of mathematics at Berkeley. Physics Gets Frothy as Mathematicians Dissect Mister Bubble [Video] 2013-05-09T19:45:00.343Z The disc is supported by a complex series of muscles and bones that create suction by erecting and depressing the lamellae. How the sharksucker got its suction disc 2013-02-04T15:45:05.517Z The bone is deposited along concentric rings called lamellae. Fundamentals of Biology 2015-01-01T00:00:00Z There are 21 and 23 lamellae beneath the fourth toe; each has 31 longitudinal rows of scales around the body. Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala 2011-12-25T03:00:10.957Z This body appears to be the source of light, and has behind it a reflector formed of concentric lamellae, while, in front, in some cases, there is a refracting lens. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z Then the rupture of those lamella “happens at hundreds of meters per second,” he adds. Physics Gets Frothy as Mathematicians Dissect Mister Bubble [Video] 2013-05-09T19:45:00.343Z The adhesion is not produced by sticky matter but by numerous transverse lamellae, each of which is further beset with tiny hair-like excrescences. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z Along the lamellae are small openings called lacunae. Fundamentals of Biology 2015-01-01T00:00:00Z This mottled appearance is due to a protrusion of a dark lamella of the integument between folded protuberances of albumen. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z This is a partial and stationary form of cataract in which, while the greater part of the lens retains its transparency, some of the lamellae are intransparent. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z Then the tip of the tongue separates and the lamellae extend from each fork. Observatory: Forget Straws: Hummingbirds Sip With Forks 2011-05-02T19:59:49Z The arrangement of the lamellae and pads differs much in the various genera and is used for classificatory purposes. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z Frequently the margins of the carpels, which fold in to the centre, split there into two lamellae, each of which is curved outwards and projects into the loculament, dilating at the end into a placenta. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5 "Fleury, Claude" to "Foraker" 2011-04-03T02:00:20.883Z If a thin cellulose membrane is interposed between the lamellae, the hyphae nevertheless turn chemotropically from the one lamella to the other and pierce the cellulose membrane in the process. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Running from these figures are a series of lamellae, like the layers of an onion, each of which is made up of a number of fibrils called the lens fibres. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1 "Evangelical Church Conference" to "Fairbairn, Sir William" 2011-07-16T02:00:16.387Z The edges of a hummingbird’s tongue are lined with lamellae, a fringe of hairlike fleshy extensions. Observatory: Forget Straws: Hummingbirds Sip With Forks 2011-05-02T19:59:49Z Most species have sharp, curved claws, often retractile between some of the lamellae or into a special sheath. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" 2011-09-02T02:00:20.450Z They may have rudimentary exopodites, and may or may not have branchial filaments or lamellae developed on their posterior faces. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" These disjunctors serve as points of application for the elastic push of the swelling spore-ends, and as the connecting outer lamella of cell-wall suddenly gives way, the spores are jerked asunder. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z It is probable that the Silurian scorpion was an aquatic animal, and that its respiratory lamellae were still projecting from the surface of the body to serve as branchiae. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" The white matter lies in the interior of the organ, and extends into the core of each lamella. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" They are the principal constituents of "woody fiber," of cell-walls, and of the "middle lamella" which fills up the spaces between the plant cells. The Chemistry of Plant Life It carries no tentacles, but is terminated by imbricated lamellae. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" The hyphae will also dissolve their way through a lamella of collodion, paraffin, parchment paper, elder-pith, or even cork or the wing of a fly, to do which it must excrete very different enzymes. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z Rudiments of the four appendages which carry the pulmonary lamellae. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" The whole outer surface of the cerebellum possesses a characteristic foliated or laminated appearance, due to its subdivision into multitudes of thin plates or lamellae by numerous fissures. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" These all seem to be products of hydrolysis of a mother substance known as "pectose," which constitutes the middle lamella of unripe fruit, etc. The Chemistry of Plant Life Each lamella is transversely folded, and the folds are in turn folded, so that the respiratory surface is increased. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Hymenium covering the entire surface of radiating lamellae or gills. European Fungus Flora: Agaricaceae The probability appears to be against an actual introversion of the appendage and its lamellae, as was at one time suggested by Lankester. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" The grey matter forms the exterior or cortex of the lamellae, and passes from one to the other across the bottoms of the several fissures. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4 "Bradford, William" to "Brequigny, Louis" On either side of the body between the mantle and the foot are two flat gills each composed of two lamellae. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" On each side of the branchia is a series of lamellae, least in number in the Octopoda. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" Each gill has the structure of a typical molluscan ctenidium, consisting of an axis bearing an anterior and posterior row of filaments or lamellae. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2 "Chicago, University of" to "Chiton" That is necessarily a blood-holding structure and is obliterated and fused with soft tissues of the sternal region so that the lamellae cannot be detached and presented as standing out from it. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" Certain of the inner cells have mucilaginous walls which when treated with water disappear, leaving only the middle lamellae, which gives the section a peculiar appearance. All About Coffee Along the sutural border of the elytron, the chitinous lamella forms a tubular space within which are numerous glands. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" It has numerous large flowers, which are pure white throughout, with the exception of the lamellae of the lip, which are yellow. The Heart of Nature or, The Quest for Natural Beauty Some cloudiness may be seen in the corneal lamellae adjacent to these fissures, in some cases due evidently to the filtration of aqueous humor through defective endothelium. Glaucoma A Symposium Presented at a Meeting of the Chicago Ophthalmological Society, November 17, 1913 The maceration of the soft parts of a scorpion preserved in weak spirit and the cleaning of the chitinized in-grown cuticle give rise to the false appearance of a limb axis carrying the lamellae. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" For the use of the oculist, who constantly employs this drug, it is also prepared in lamellae for insertion within the conjunctival sac. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" In the lamellae of the antennae of the two specimens there is considerable difference, so that probably there may be a second species of Biphyllocera. Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 2 Here, too, we find an additional mode of colour production in transparent lamellae or in fine surface striae which, by the laws of interference, produce the wonderful metallic hues of so many birds and insects. Darwinism (1889) It seemed to be lamellated, but the lamellae were placed vertically, sometimes radiated with a diameter of four or five feet, and sometimes they were placed parallel. An Account of the English Colony in New South Wales, Volume 2 The mechanic cause is the presence of air between the lamellae of the affected parts, but their origin is unknown. Anomalies and Curiosities of Medicine Whether administered in the form of the official lamella or by subcutaneous injection, physostigmine causes a contraction of the pupil more marked than in the case of any other known drug. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" The coxal lamellae of the penultimate pair of feet are produced into hook-like processes, of which the male lays hold with the hands of the first pair of feet. Facts and Arguments for Darwin The mica is found in superposed lamellae, not isolated. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 These whales have enormously muscular tongues, which press the water through the whalebone lamellae and thus, by a filtering process, retain the small food organisms. South: the story of Shackleton's 1914-1917 expedition This diagram shows the quadripartite arrangement of the primary septa, characteristic of palaeozoic corals, there being four principal and eight intermediate lamellae, the whole number in this type being always a multiple of four. c. The Student's Elements of Geology Here and there in rare instances we find a few copper or bronze lamellae amongst the piles. Manners and Monuments of Prehistoric Peoples But if such a concretion, or one of only moderately large size, is dissolved in acid, much membranous matter is left, which appears to consist of the remains of the formerly active lamellae. The formation of vegetable mould through the action of worms, with observations on their habits On the other hand, the extremities of these lower lamellae are frayed into fine bristly points, so that they thus curiously resemble the plates of baleen. The Origin of Species by means of Natural Selection, 6th Edition The precipice was perpendicular as a wall, its topmost height crowned with the same conglomerate of crystallized lamellae that had all along been so pronounced a feature. Off on a Comet! a Journey through Planetary Space The lamellae are seen around the inside of the cup; the walls consist of cellular tissue; and large transverse plates, called tubulae, divide the interior into chambers. b. The Student's Elements of Geology A very small concretion was removed from between two of the lamellae within an anterior gland. The formation of vegetable mould through the action of worms, with observations on their habits After the formation and expulsion of a large concretion, new lamellae must be developed in some manner. The formation of vegetable mould through the action of worms, with observations on their habits At their bases there is a short subsidiary row of obliquely transverse lamellae. The Origin of Species by means of Natural Selection, 6th Edition As the smaller concretions increase in size, they come into contact and unite, thus enclosing the now functionless lamellae; and by such steps the formation of the largest concretions could be followed. The formation of vegetable mould through the action of worms, with observations on their habits In this type the lamellae are massive, and extend to the axis or columella composed of loose cellular tissue, without any transverse plates like those in Figure 474, a. b. The Student's Elements of Geology There are other species of geese, as I hear from Mr. Bartlett, in which the lamellae are less developed than in the common goose. The Origin of Species by means of Natural Selection, 6th Edition A great enlargement in one direction of several oval pipes would give rise to the lamellae. The formation of vegetable mould through the action of worms, with observations on their habits In this latter bird the lamellae of the upper mandible are much coarser than in the common duck, almost confluent, about twenty-seven in number on each side, and terminating upward in teeth-like knobs. The Origin of Species by means of Natural Selection, 6th Edition In the family of the ducks, the lamellae are first used as teeth, then partly as teeth and partly as a sifting apparatus, and at last almost exclusively for this latter purpose. The Origin of Species by means of Natural Selection, 6th Edition With such structures as the above lamellae of horn or whalebone, habit or use can have done little or nothing, as far as we can judge, towards their development. The Origin of Species by means of Natural Selection, 6th Edition |
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