21. City skylines are not criss-crossed with grids of laser beams because it is all done using invisible infra-red light, says Mr O 'brien.
O ' Brien先生说,城市高楼大厦之间并非激光束往来交错,因为这一技术使用的都是红外光。
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22. Using the natural reflectivity of ceilings and walls, a transmitted infra-red signal can be received by any number of receivers within a room.
利用天花板和墙面的自然反射性,传送的红外信号能够被一个屋子里的所有接收器接收到。
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23. Small drones are being developed with highly efficient wing-bottom infra-red cells that scavenge radiation energy reflected up from the ground.
有人正在研制一种小型无人机,机翼底部设有高效红外电池,能够捕捉地面反射的辐射能。
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24. LaserMotive USES special cells made with arsenic and gallium, elements better able to capture the near-infra-red wavelengths of its laser beam.
而激光动机公司制造的光伏板是用砷和镓制作的,这种光伏板能更好地从激光光束中近红外分层波长中的能量。
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25. LaserMotive USES special cells made with arsenic and gallium, which are better able to capture the near-infra-red wavelengths of its laser beam.
LaserMotive使用的则是砷镓特制电池,这种电池在攫取近红外波长方面更具优势。
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26. It USES inkjet print-heads to deposit infra-red-absorbing ink on layers of polymer powder which are fused into solid shapes with infra-red heating.
使用喷墨打印机的喷头将红外吸收墨水铺在聚合物乳胶粉层上,在红外线的热度下乳胶粉会被熔结成固体形状。
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27. That changed in the early 1960s, when Nick Holonyak, a researcher at General Electric, first learned that semiconductors could generate infra-red light.
28. The cloud image is a composite of two days of imagery collected in visible light wavelengths and a third day of thermal infra-red imagery over the poles.
两天的可见光影像采集和一天的红外光极地影像采集的数据合成了云层影像。
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29. Now, though, NPR has managed to uncover the details behind the company's patented book scanning system - and found that the secret is 3d infra-red cameras.
30. Now, though, NPR has managed to uncover the details behind the company's patented book scanning system - and found that the secret is 3d infra-red cameras.