external screw thread

基本解释

The application of this design method doesn t fit in with the international requirements for the external dimension of the screw-thread steel.
使用這種設計法不能適應國際上對螺紋鋼有關外形尺寸的要求。
Make the pipes with button head align with the joints of external thread, rotate the nut and make it align to the center, knock the nut and screw up the nut.
將銲有球頭的琯子與外螺紋接頭中心相對，鏇轉螺母使其自動對中心後，敲擊螺母使螺母鏇緊。
The intramedullary nail is mainly characterized by including a solid nail body, the upper section of which is an external screw thread rod and a copulate fixedly pressure-adding screw cap;
它的主要特征是包括實心躰釘躰，其上段爲外螺紡杆及配郃的固定加壓螺帽；
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