Finally, once a police car has the Tahoe in view and the road ahead is clear, a second signal slows the engine down.

最后，只要它进入警车的视线内，并且前方道路通畅，第二个信号就会让它的引擎慢下来。

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For months after his discovery Dr Bhathal scanned the skies for a second signal to see whether it was just a glitch in his instrumentation but his search came to nothing.

在接下来的几个月内，为了确保这不是因为仪器故障导致的假讯号，巴瑟尔博士又一次扫描了这片区域，但却一无所获。

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The first and second signal values are used to indicate moisture present in the skin of the user at the second skin measurement location.

其中所述第一和第二信号值用于指示在所述第二皮肤测量位置处存在于使用者的皮肤中的水分。

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They're ready to rapidly differentiate into antibody producing cells and they're waiting for that second signal to come.

并可以迅速分化为,抗体分泌细胞,记忆细胞在等待第二次信号的到来

耶鲁公开课 - 生物医学工程探索课程节选

They often involve the generation of what are called 'second messenger' molecules which carry the signal further into the cell.

过程中通常会生成一种叫做,第二信使的分子,将信号更深入地传递至细胞内部

耶鲁公开课 - 生物医学工程探索课程节选

That signal is carried here, for example, by the concentration of second messengers - the concentration of something else.

这里这个信号由,第二信使的浓度,即另一种物质的浓度来传递

耶鲁公开课 - 生物医学工程探索课程节选

Moreover, they also point out that there should be a second signal from annihilating dark matter, in the form of gamma rays coming from the Milky Way's halo.

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The clock face, which uses a red second hand resembling a railway signal on a monochrome background, was designed for the SBB in 1944 by engineer and designer Hans Hilfiker while the rest of Europe was focusing on other matters.

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Phillip Mott QC told the court that he had been distracted after a farmer rang the signal box for a second time asking if it was safe to walk his sheep over another crossing further up the track.

BBC: Level crossing death: Signalman and Network Rail fined