float ball self-closing valve的意思|示意
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浮球自闭阀
float ball self-closing valve的网络常见释义
浮球式自闭阀 float-ball self-closing valve 浮球式自动关闭阀 float ball self-closing valve 浮球式自闭阀 quick-acting self-closing gate valve 速动自闭闸阀 ..
float ball self-closing valve相关短语
1、 float-ball self-closing valve 浮球式自动关闭阀