bottom joint
短语词组
- bottom articulated joint 底部铰接缝
- bottom induced joint 诱导底缝
- upstream bottom -joint 上游底缝
- Bottom Upset Joint 下端外螺纹连接
- bottom chord joint 下弦接头
- bottom -joint 诱导缝
- bottom tool joint 下方接头
- bottom m joint 水平节理
- oblique grinding bottom joint 斜对接接头 返回 bottom joint