Mine-used drinking fountain of flameproof and Intrinsically Safe can solves the drinking problem of underground personnel and improves the drinking condition and quality of drinking water.
矿用隔爆兼本质安全型饮水机可以解决煤矿井下工作人员的饮水问题，提高井下工作人员的饮水条件和饮用水质量。
The paper introduces the working principle, control, protection and related performance of QJZ—400/1140(660) mine flameproof and intrinsically safe vacuum electromagnetic starter.
介绍QJZ—400/1140（660）矿用隔爆兼本质安全型真空电磁起动器的工作原理、控制、保护及相关性能。
As the use of coal underground mining face of electrical equipment and control equipment, must be flameproof or intrinsically safe type equipment.
但是由于在煤矿井下采掘工作面使用的电气设备和控制设备，必须是隔爆型或本质安全型设备。
Flameproof and Intrinsically Safe sound and light production device will not voice signals to the environment pollution.
矿用隔爆兼本安型声光语音信号器的生产不会给环境带来污染。
Flameproof and Intrinsically Safe sound and light production device will not voice signals to the environment pollution.
矿用隔爆兼本安型声光语音信号器的生产不会给环境带来污染。
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