请问oil cooled welder 是冷焊机么?

请问oil cooled welder 是冷焊机么? welder是什么意思 ? welder单词 fluid cooled oil oil welder performance qualification test是什么意思 请问“oil drain bedplate vertical”怎么翻译, 泰国massage oil脸上能用吗请问知道的朋友massage oil脸上能用吗 还有他的职业是WELDER&FLAME Add1lite engine oil when next refuelling请问这是什么意思? 请问拉伸油用英文怎么说?drawn oil 请问油基塑料是什么 英文是oil based plastics film-cooled heat shield是什么意思 请问,pure oil mist lubrication和purge-oil mist lubrication分别怎样翻译?有什么区别呢? it cooled down the hot air oil gas OIL是什么意思