male and female thread 中文意思是什麼
male and female thread
解釋
內外絲扣-
The male x female thread end connecting eliminates the need for special pipe connectors and gives flexibility when connecting pipe systems of different design
外螺紋連接埠內螺紋連接埠避免配置專用的管道連接件,便得接連不同結構的管道系統時具有靈活性。
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