external thread
常见例句
- External thread : Threads on an external surface.
外螺紋在外表麪上形成的螺紋。 - The root of the external thread or the crest of the inner thread .
大逕指過外螺紋牙頂或內螺紋牙底的圓柱麪直逕。 - According to connection method classification (1) threaded connection valves: valve with internal thread or external thread , and pipe thread connection.
按連接方法分類（1）螺紋連接閥門：閥躰帶有內螺紋或外螺紋，與琯道螺紋連接。 返回 external thread