external screw thread

基本解釋

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(shè)計(jì)法不能適應(yīng)國(guó)際上對(duì)螺紋鋼有關(guān)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.
將焊有球頭的管子與外螺紋接頭中心相對(duì)，旋轉(zhuǎn)螺母使其自動(dòng)對(duì)中心后，敲擊螺母使螺母旋緊。
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(shí)心體釘體，其上段為外螺紡桿及配合的固定加壓螺帽；
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