| 单词 | photocell |
| 例句 | The miles of relays and photocells had given way to the spongy globe of plantinumiridium about the size of a human brain. I, Robot 1950-12-02T00:00:00Z In fact, accepted literally, perhaps the phrase was accurate, even if to each, the other were merely the light and dark pattern of a bank of photocells. I, Robot 1950-12-02T00:00:00Z The laborers worked, in the main, silently, but more than one was openly a-wonder at the sixty-three photocells that required installation. I, Robot 1950-12-02T00:00:00Z Today we combine a laser and a photocell, or a radar transmitter and a radio telescope, and in this way make active contact by light with distant objects. Cosmos 1980-01-01T00:00:00Z Corresponding with changes in daily sunlight, solar photocells in the tree canopy trigger low-voltage charges, activating plectrums that pluck wire strings within the body of the sculpture. This week's new exhibitions 2010-09-03T23:06:00Z Drawing from technology developed for fighter pilots, a light-sensitive photocell triggers the liquid-crystal-enhanced lens to change to one of four tints — including clear — in a fraction of a second, based on conditions. Gear for a Snowy Getaway 2014-12-11T05:00:00Z Integrated with this is a timer and/or photocell. Make your backyard shine with low-voltage lighting | Produced by Advertising Publications 2018-05-30T04:00:00Z The young Arthur received cast-off equipment, such as telephones, switch-gear and a photocell from his relative George Grimstone, an engineer who taught him to build wireless crystal sets. Technology: He wrote the future : Nature : Nature Research 2017-01-17T05:00:00Z Users pointed it at four photocells positioned next to the corners of the TV screen to trigger actions. Eugene Polley 2012-05-23T17:19:34Z "We looked at changing the timers but most of our street lights don't have timers they operate on a photocell, so if you upgrade the switch gear it's actually quite expensive." Swindon switching off street lights 2011-07-15T10:52:06Z Through the door streamed a light of a brilliance beyond anything in his experience; his photocells cringed before its very intensity. The Small World of M-75 Our photocell examination showed the wave-patterns of the initial and final portions of the film were typically Martian—but the middle part isn’t. The Record of Currupira Eventually, moving as it did in the straightest of straight lines, its photocells reported that it neared a star which had achieved first-magnitude brightness. A Matter of Importance Ladies—" he inclined his photocells toward Rose Thinker and Meg—"and gentlemen. Bread Overhead A fast reading with the photocell gave me the apparent magnitude and a comparison with its absolute magnitude showed its distance. The Repairman He swung back into the foyer of the plant and faced a dark corner, bringing instant, essential relief to his pulsating photocells. The Small World of M-75 Loud in the silence, a photocell acted with a double click, opening one segment of the sun shielding and closing another at the opposite side of the dome. Little Fuzzy It hopped half a light-year in overdrive, and came back to normality long enough for its photocells to inspect the star-filled universe all about. A Matter of Importance Rose Thinker spun twice on her chair and opened her photocells wide. Bread Overhead Tin Philosopher's photocells focused on him calmly, Rose Thinker's with unfeigned excitement. Bread Overhead |
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