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。
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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