A spaceship's position can be located by following its radio signal, or by using telescopes and radar.

宇宙飞船的位置可以根据追踪它的无线电信号来确定，也可以用望远镜和雷达来确定。

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Battery input is monitored and a fault signal becomes active when VBAT is out of its operative range.

当 VBAT 超出其工作范围时，将监视电池输入并激活故障信号。

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Its invitation to me gave a signal to the sociology profession that the rational choice approach was a respectable theoretical paradigm.

对我的邀请给了社会学专业一个信号，理性选择方法是一个不错的理论典范。

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First, the fact that a host nation agrees to have U.S. forces stationed on its soil is a signal to the world that it will also allow U.S. troops to operate on their soil, if necessary.

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But Cher recently indicated that the company could at some point decide to buy an operating system of its own, perhaps a signal to Google that it had better watch its step.

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In a series of measures, some long promised, the government gave its clearest signal in a long while that it is serious about getting out of the economy's way.

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