gas injector
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在上述灭火气体喷射器设置有告知器53，该告知器53可通过来自灾害警报机的火灾发生信号或地震发生信号而报警。
The fire extinguishing gas spray device has an annunciator (53) that issues an alarm based on a fire occurrence signal or an earthquake occurrence signal from a disaster alarm device.
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