using back purging with inert gas for all stainless steel material．怎么翻译?谢谢!很急的问题,拜托了．．．

using back purging with inert gas for all stainless steel material．怎么翻译?谢谢!很急的问题,拜托了．．． comes back from w . using 帮我翻译一篇文章,Intelligent back analysis of displacements using precedent type analysis for Well,we can always go back to using the sun and the stars同义句well,we can always _______ ________ using the sun and the stars! W-INDS.back at one 的中文意思是什么? w-inds can't get back歌词想找w-inds,CAN'T GET BACK这首歌的中文翻译歌词, I'm using your bike.May I___two days later?选哪个?为什么?这几个短语该怎么用?A.give back it B.give back them C.give it back D.give them back back back back back back back back back back Back