为了防止伤害在集尘装置上的卸压膜。
Pressure relief membrane to prevent damage to a confined dust collection device.
在进行阀门维护之前，确保管道已经卸压。
Before performing any maintenance on the valve be sure the pipeline has been depressurized.
具有快速接近、加压、卸压快速退回功能；
With fast approaching, pressure, unloading fast return function;
具有快速接近、加压、卸压快速退回功能；
With fast approaching, pressure, unloading fast return function;
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