Ovary ovoid, usually 4-locular, with amphitropous ovules.
子房卵球形，通常4室，有曲生胚珠。
| 单词 | ovules |
| 例句 |
英语例句库
Ovary ovoid, usually 4-locular, with amphitropous ovules. 子房卵球形，通常4室，有曲生胚珠。 The megagametophyte within the ovule of a flowering plant. 胚囊 Embryo sac 有花植物胚珠内的雌配子体。 Ovary inferior, 1-8-loculed, with 1 pendulous, apotropous ovule per locule. 子房下位，1-8室，每室有1颗倒生的下转胚珠。 The ovary was trilocular with axile placentation and the ovule was anatropous, biteguminous and crassinucellate. 子房3室，中轴胎座。胚珠倒生，双珠被，厚珠心型。 Stigma subsessile, penicillate-capitate. ovule orthotropous. 胚珠直生的。 An ovule which is curved so that the micropyle is positioned near the funiculus and the chalaza. 弯生胚珠 Campylotropous ovule 珠孔邻近珠柄和合点的弯曲的胚珠。 The ovule is bitegminous and tenuinucellate.The archesporial cell locates under the nucellus epidermis, which develops into fuctional megasporocyte. 孢原细胞位于珠心表皮之下，直接起大孢子母细胞的功能。 Simple ovary, the placentation is brink.The ovules are campylotropous.The ovule is bitegmic and crassinucellate.The megaspore archesporium is initiated from sub-epidermis of nucellus. 摘要矮沙冬青子房单心皮1室，边缘胎座，弯生胚珠，胚珠具双珠被、厚珠心。 声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
原声例句
6 Minute English 六分钟英语 Only after pollination can the next process occur-fertilisation-when the pollen carried from another plant fertilises a female ovule to make new seeds. 只有经过了授粉，下一个程序受精——被带到另一个植物上的花粉在磁性胚珠上授精来结成新种子——才会发生。 6 Minute English 六分钟英语 Only after pollination can the next process occur – fertilisation - when the pollen carried from another plant fertilises a female ovule to make new seeds. 只有在授粉之后，下一个过程才会发生——受精——从另一株植物上带过来的花粉使一个雌性胚珠受精，从而产生新的种子。 中高级英语短文 In the latest study, the team used micro-CT technology to scan the fossil and found that the interior contained inverted ovules, which is a key feature for determining angiosperms. 在最新的研究中，该团队使用微型 CT 技术扫描化石，发现内部包含倒置的胚珠，这是确定被子植物的关键特征。 物种起源 There must sometimes be a physical impossibility in the male element reaching the ovule, as would be the case with a plant having a pistil too long for the pollen-tubes to reach the ovarium. 有时雄性成分到达胚珠在物理上是不可能的， 例如雌蕊太长以至于花粉管无法到达子房的植物就是这种情况。 物种起源 In certain whole groups of plants the ovules stand erect, and in others they are suspended; and within the same ovarium of some few plants, one ovule holds the former and a second ovule the latter position. 在某些整群植物中， 胚珠直立，而在另一些植物群中， 胚珠则悬空；在少数植物的同一个子房内， 一个胚珠占据前者的位置， 第二个胚珠占据后者的位置。 物种起源 If so, the position of the ovules, even when one is erect and the other suspended within the same ovarium, would follow the selection of any slight deviations in position which favoured their fertilisation, and the production of seed. 如果是这样， 胚珠的位置， 即使一个直立而另一个悬置在同一个子房内，也将遵循有利于它们受精和种子生产的任何轻微位置偏差的选择。 |
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