欢乐是我们的双翼, 悲痛是我们的动力. -- 里克特.Joys are our wings, sorrows are our spurs. -- Richter.有一天, 马维尔带着三本书跑进了乔利·克里克特客店.One day, Marvel, carrying three Books, came running into the Jolly Cricketers Inn.它在时速75-80每公里达到最佳效果,里克特博士说.It wo...
沸腾钢在铸锭前不脱氧或轻度脱氧.In the case of rimming steel, no or some deoxidation is carried out before casting.由于废弃的部分小,沸腾钢的成材率较高.With small portion to be scrapped rimming steel has a high yield of good steel....