Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinder.
使用减压调整器或单个的控制阀来安全地从钢瓶中排出气体。采用止回阀，防止回流入钢瓶。
And so if he gets the voltage high enough, this gas discharge tube will glow.
如果管中的电压足够高的话，气体放电管将会发光燃烧。
Here is the gas discharge tube.
这里是个气体放电管。
When the volume and between vent, oil and gas air mixture interlinked from vent discharge.
当齿间容积与排气口相通时，油气混合空气从排气口排出。
The discharge of harmful gas into open air is dangerous.
将有害气体释放到空气中是危险的。
See the rear of the discharge of so many black mass of gas.
看到车尾排出的那么多黑糊糊的气体。
When such discharge is really necessary, the discharged gas or dust must undergo purification treatment.
确需排放的，必须经过净化处理，不超过规定的排放标准。
And what is inside the gas discharge tube is gas at low pressure.
气体放电管里，有处于低压下的气体。
And what is inside the gas discharge tube is gas at low pressure.
气体放电管里，有处于低压下的气体。
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