渣油加工有脱碳工艺 、 氢工艺及沥青气化工艺.Residue processing can be summarized as decarbonization, hydrogenation and asphalt gasification.含碳的铌合金,若在高温下受氧沾污,易产生脱碳现象.In niobium alloy containing carbon occurs decarburization in case of contami...
a historically unprecedented growth in retirement at a fixed age在固定年龄退休人数史无前例的增幅He believes that, historically, Labour has been most successful as the party that helped people get on in life...他相信一直以来工党在帮助人民改善生活方面表现最为出色。...
胚泡附着到子宫内膜.这一过程称为植入.The attachment of the blastocyst to the lining of the uterus.一些人认为破坏胚泡的行为可以以谋杀论处.Some people think that destroying blastocysts is murder.如果子宫内膜未为接受胚泡做好准备,结果也是如此.The same is true if the uterine lining i...