When engaged the Link senses a presence or absence of signal at the input and depending on conditions, places the unit into standby mode.

当从事链接感官的业务或没有信号的输入和有关情况而定，进入待机模式的地方单位。

youdao

"Since woolly and Columbian ranges periodically overlapped in time and space, it's likely that they engaged in similar behaviour and left a similar genetic signal, " Enk said.

“由于长毛猛犸和哥伦比亚猛犸的生活区域会发生周期性的重叠，所以它们可能具有相似的生活习惯和相似的遗传标记。” Enk说。

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The car smoothly engaged the brakes, waited for a car on the left to pass, turned on the signal, passed the van and pulled back to the right. Seamless.

但车子自动平顺地放慢了车速，等到左边的一辆车先超过去，才打了转向灯，超过了这辆面包车，然后又回到右侧车道，简直天衣无缝。

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Indeed, some allies would undoubtedly read a one-war capability as a signal that the United States, if heavily engaged elsewhere, would no longer be able to help defend their interests.

CENTERFORSECURITYPOLICY: Center for Security Policy | The Measure of a Superpower: A Two Major Regional Contingency Military for the 21st Century

Coming at a time when Apple (NASDAQ:AAPL) is engaged in multiple litigations, the iPhone map disaster may signal that the company is spending more time on litigation than innovation.

FORBES: Is Apple Spending More Time on Litigation Than Innovation?

And it will signal to regional powers like Pakistan and Iran that the United States plans to remain engaged in Afghanistan for many years into the future.

CNN: Surprising hope for Pakistan and Afghanistan