Different grades of crystal polystyrene molding pellets range from 150,000 to 350,000 weight average molecular weight.不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150,000-350,000.What factors does he take into consideration in determining the...
He chewed the stem of his pipe and eyed her sceptically.他嘴里衔着烟斗柄，满腹狐疑地打量着她。Her wide-eyed innocence soon exposes the pretensions of the art world.她的天真烂漫很快就暴露了艺术界的矫揉造作。They got misty-eyed listening to records of Ruby Murra...
They have enviable reputations as athletes.作为运动员，他们的声望令人羡慕。Schools with better reputations will be flooded with applications while poorer schools will be left high and dry.较有名气的学校将会收到如潮水涌至般的申请，而差一些的学校则会陷入招生困境。Personal re...