在拥挤、狭小的封闭环境中，一旦有烟雾，无论是白天黑夜都看不清周围的物体、丧失方向感。
In the crowded, narrow sealing environment, once a smoke, whether all day and all night not see the loss of sense objects, around.
利用烟箱法枪口烟雾测试系统，研究了钝感剂种类和用量对枪口烟雾的影响。
A new method to measure gun muzzle smoke is adopt to investigate the influence of some gun propellant deterrents.
利用感温式和感烟式传感器对火灾发生时温度和烟雾两个主要参量进行智能监测很好地解决了报警灵敏度和误报率之间的矛盾。
The contradiction of alarm sensitivity and false alarm rate is solved by intelligent monitoring of the temperature and aerosol, which are detected by temperature sensor and aeros...
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