A tooth which has been hit hard may discolour.受过重击的牙齿可能会变色。A tooth which has been hit hard may discolour...受过重击的牙齿可能会变色。Benzoyl peroxide can cause fabric to discolour on contact. Use with care.过氧化苯可能导致织物脱色, 请小心使用.Plastic...
英镑大幅贬值。There was a sharp fall in the value of the pound.直到现在，美元的贬值似乎都无法想象。Until now, a devaluation of the dollar seemed inconceivable.这将会造成数种欧洲货币的贬值。It will lead to devaluation of a number of European currencies....
Kinetic equation in the baking process of purifying aphanitic graphite were researched.研究了隐晶质石墨的提纯工艺中焙烧动力学方程.The basic principles of highly purification for the aphanitic graphite are briefly discussed in this article.简述...