welder是什么意思 ?

welder是什么意思 ? welder performance qualification test是什么意思 welder单词 还有他的职业是WELDER&FLAME 请问oil cooled welder 是冷焊机么? Welder (First Class)特别是括号里的FIRST CLASS 这是移民职位列表里的职位名称 电焊机品种Mig Welder 在中国叫什么电焊机,Mig,Arc 220V分别指什么品种的电焊机.行内的叫法是什么? 英语翻译Markus Antonietti,Wolfgang Bremser,DorotheaMuschenborn,Christine Rosenauer,and Beate SchuppZnstitut fur Physikalische Chemie der Universitat Mainz,Jakob Welder Weg 15,0-6500 Mainz,West GermanyManfred SchmidtMar-Planck Znstitut fur Polymer 英语翻译Welder,entry MCC,furnace MCC,VVVF drives for entry and furnace section,VVVF drives on emergency power DC power supply for Strip Transport Entry and furnace section DC power supply for Strip Transport Descaling,pickling and exit section VV 英语翻译Subject:welder testing The ARC and TIG machines appear to be dual purpose so they should be OK 1.however,the photo's only showed one MIG machine and I would like to know how many MIG's they have.2.I would also like to see a photo of the h 英语翻译Reduced pressureIn a system with only one pump,reduced pressure for one branch of the circuit can be obtained with a pressure-reducing valve.This circuit is typical for a welder,which requires high clamping force to be set by the relief v 是什么意思 是什么意思? 是什么意思 是什么意思? 是什么意思 是什么意思? 是什么意思