box bolt

It is of bullpup layout, and utilizes the most conventional gas operated, rotating bolt locked action, with detachable box magazine feeding.

这是小斗犬的布局，并利用最传统的气体操作，旋转螺栓锁行动与可拆卸弹匣喂养。

Drag onto the page. The size of the shape's selection box is equal to the bolt's thread diameter.

拖到绘图页上。形状的选择框的大小等于螺栓的螺纹直径。

Construction technology and quality control measures for steel box girder, high-strength bolt, prestressed concrete box girder and inclined cable are briefly introduced.

简要介绍武汉白沙洲大桥主桥上部结构的钢箱梁、高强螺栓、预应力混凝土箱梁、斜拉索的施工工艺和质量控制措施。

So as to breach the box form structure of tradition steeliness bogie frame, it uses the cast aluminum alloy and Aluminum profile to replace steels and adopt the method of bolt joint to assemble the whole structure.

突破传统钢制构架箱形结构形式，采用铸造铝合金和铝型材对构架各梁体分别成型，然后通过螺栓进行连接。