hollow casing spear
[石油英汉词典]
hollow casing spearn.空心套管打捞矛
是什么意思,hollow casing spear的解释,hollow casing spear的翻译
[新英汉石油技术词典] hollow casing spear
hollow casing spear
[石油英汉词典]
hollow casing spear是什么意思,hollow casing spear的解释,hollow casing spear的翻译
[新英汉石油技术词典] hollow casing spear