名词
中文翻译：阀门研磨砂
同义词：
['valve dressing', 'valve dressing sand例句：1. The engineer useda special valve grinding sand to clean thevalves.（工程师使用一种特殊的阀门研磨砂来清洁阀门。）2. The valve grinding sand wasused to polish the valves before theywere installed.（在安装之前，阀门研磨砂被用来抛光阀门。）3. The valve grinding sandwas essential for the maintenance of theindustrial pump.（阀门研磨砂对于工业泵的维护至关重要。）']
例句：
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1. The engineer useda special valve grinding sand to clean thevalves.
工程师使用一种特殊的阀门研磨砂来清洁阀门。
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2. The valve grinding sand wasused to polish the valves before theywere installed.
在安装之前，阀门研磨砂被用来抛光阀门。
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3. The valve grinding sandwas essential for the maintenance of theindustrial pump.
阀门研磨砂对于工业泵的维护至关重要。