The criterion is helpful for rational alloying of maraging steels with lower Ni and Co contents.这些为马氏体时效钢降镍钴和合理的合金化提供有益的看法.A new type of maraging steel metal powder cored wire for die TIG surfacing is developed.研制了一种用于TI...
Everybody is being secretive:there’s something cooking.每个人都鬼鬼祟祟的,一定出了什么事情。Any effective opposition to a totalitarian regime must be secretive and cellular.任何有效反对极权主义统治的组织必须是秘密的,分散成各个单元的....the secretive world of spying.不...