radial bearing upper drive sub_新英汉石油技术词典
radial bearing upper drive sub
[新英汉石油技术词典]
radial bearing upper drive sub上部径向轴承传动接头（螺杆钻具）
是什么意思，radial bearing upper drive sub的解释，radial bearing upper drive sub的翻译
[石油英汉词典] radial bearing upper drive sub
