闪电触发器在光源有变化时会自动闪灭。
Lightning triggers go off when there's any change in light source.
事件表存储数据库触发器在分段表中生成的异步事件。
An event table stores the asynchronous events generated by the database triggers in a staging table.
高速触发器在环境音量超过特定的水平时启动闪光灯。
The high-speed trigger sets off the flashes when the ambient sound volume goes over a certain level.
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