start-stop signal

To make this a pull system, it needs a mechanism allowing the downstream process to somehow signal the upstream process to start working.

而为了使其变成拉动式系统，还需要一种机制来使下游工序以某种信号通知上游工序开始工作。

After receiving the RF signal, the receiving and alarm module will sound an audible alarm which prompts the driver to release the brake plate and clutch in order to a smooth start of exhaust brake assist device.

接收报警模块在收到射频信号后，发出声音报警，提示驾驶员不能踩下制动板和离合器。

The bomb attack on the capital could signal the start of a pre-election terror campaign.

对首都的炸弹袭击可能标志着选举前的恐怖活动开始了。

Change the nature of human understanding and that is get the signal from the start, after eliminate the false and retain the true, discard the dross and select the essential, exterior to interior, from here to the analysis and processing to achieve the ultimate goal.

人类认识和改造自然就是从获取信号开始，经过去伪存真、去粗取精、由表及里、由此及彼的分析处理才能达到最终目的。

a starting pistol (= used to signal the start of a race)

发令枪