ball valve effect 中文意思是什麼
ball valve effect
解釋
球瓣效應-
Eliminated has sealed the attrition of side effect, has overcome problem of the traditional ball valve and valve seat and the spheroid packing surface of wore
消除了密封副的磨損,克服了傳統球閥閥座與球體密封面始終磨損的問題。
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