tilting mast upright
[新英汉石油技术词典]
tilting mast upright倾斜式轻便井架
是什么意思,tilting mast upright的解释,tilting mast upright的翻译
[石油英汉词典] tilting mast upright
tilting mast upright
[新英汉石油技术词典]
tilting mast upright是什么意思,tilting mast upright的解释,tilting mast upright的翻译
[石油英汉词典] tilting mast upright