The deformative charateristics of cementite of white cast iron during the rolling process was investigated.研究了惨碳体在白口铸铁轧制变形过程中的变化特点.A mixture of ferrite cementite forming distinct layers or bands in slowly cooled carbon s...
I think more customers probably prefer a soft sell.我认为更多的顾客也许更喜欢软性推销。They prefer to bargain with individual clients, for cash.在现款方面，他们更愿意同散户打交道。I prefer going to the cinema to watching TV.我更喜欢看电影而不是看电视。...