double bottom bracket floor
[石油英汉词典]
double bottom bracket floorn.双层底空心肋板
是什么意思,double bottom bracket floor的解释,double bottom bracket floor的翻译
[新英汉石油技术词典] double bottom bracket floor
double bottom bracket floor
[石油英汉词典]
double bottom bracket floor是什么意思,double bottom bracket floor的解释,double bottom bracket floor的翻译
[新英汉石油技术词典] double bottom bracket floor