vertical timing relationship
[新英汉石油技术词典]
vertical timing relationship垂直计时关系
是什么意思,vertical timing relationship的解释,vertical timing relationship的翻译
[石油英汉词典] vertical timing relationship
vertical timing relationship
[新英汉石油技术词典]
vertical timing relationship是什么意思,vertical timing relationship的解释,vertical timing relationship的翻译
[石油英汉词典] vertical timing relationship