Tomorrow evening when the enemy arrives, abandon camp. At the fire signal, turn back upon them.

来日黄昏，敌军必到，主公便弃营而走；但见火起，即回军掩杀。

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The controller, which is single-chip 8031 microcomputer, carries out the collection of fire signal and direct control.

控制器采用8031单片机实现，完成火灾信号采集和直接控制。

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It makes the signal processing method in fire detection to be downright improved and improves the ability to detect fire in early stage.

这使得在火灾探测中的信号处理在方法上做了彻底改进，提高了早期发现火灾的能力。

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The explosion was a signal for all Confederate guns surrounding the fort to open fire.

VOA: special.2009.08.13

That explosion would signal the other guns surrounding the fort to open fire.

VOA: special.2009.08.06

The blazes could signal a difficult fire season ahead.

NPR: Fire Forces Evacuation Of Campus, Homes In Calif.

Instead, stick the probe in, place it on the fire and wait for the audio signal that the food is cooked.

FORBES: Magazine Article

Now random phrases and images came at me the sudden quick-fire assaults that signal a new idea and I knew that they would come in sequence soon enough, their predestined rhythms would assert.

NEWYORKER: Fjord of Killary