This is achieved by toggling their visibility pressing the spacebar and works only when inside a trigger volume surrounding them.

这通过按下空格键切换其可视性，只有在他们周围的一个触发装置中才能完成。

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One of the most powerful features of the IBM trace engine is its ability to trigger on trace events, which is vital for creating targeted trace output and reducing the volume of trace data produced.

IBM跟踪引擎最强大的特性之一是它能够在发生跟踪事件时触发，这有助于创建目的明确的跟踪输出并减少产生的跟踪数据量。

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The high-speed trigger sets off the flashes when the ambient sound volume goes over a certain level.

高速触发器在环境音量超过特定的水平时启动闪光灯。

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The trigger points vary on the volume and price of the stock in question.

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Can use the volume up button as a shutter trigger.

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Some 70% of all equity volume is driven by computer models that suddenly trigger a surge in buy or sell orders that are causing the fragmentation, volatility and use of hidden trading venues.

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