joint penetration meaning in English

接头焊透层
接头焊透度
接头熔深
熔化连接

Specification of high pressure thread joint penetration pieces
高压螺纹接头通舱管件规范
In addition , the general headquarters / departments organized successive studies and exercises of communications and command at the joint operational level , training of landing and mountain operations , and research on methods of joint penetration operations , and explored the features and patterns of integrated network and electronic warfare
总部机关还相继组织了联合战役通讯指挥研练、登陆和山地作战训练以及联合突防战法研讨，并探索了网电一体战的特点和作战样式。