Certain naturally occurring mineral deposits may adhere to the valve, blocking waterways, rendering it inoperative.

某些自然产生的矿物质沉淀可能附着在阀门上，堵塞水路，造成阀门不起作用。

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The solenoid plunger pulls the vent valve down, blocking off the passage to the charcoal canister.

电磁柱塞拉下通气阀，堵住通向活性碳罐的通路。

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Import import trap or trap is known for the steam pipe network and devices, can automatically discharge condensate, air and other non-condensing gas, and blocking water vapor leak valve.

进口疏水阀或称进口疏水器是用于蒸汽管网及设备中，能自动排出凝结水、空气及其它不凝结气体，并阻水蒸汽泄漏的阀门。

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