knuckle and socket joint
knuckle and socket joint
[新英汉石油技术词典]
knuckle and socket joint铰链活节连接
是什么意思，knuckle and socket joint的解释，knuckle and socket joint的翻译
knuckle and socket joint
[新英汉石油技术词典]
knuckle and socket joint是什么意思，knuckle and socket joint的解释，knuckle and socket joint的翻译