N, N - Diisopropylethylamine ( DIPEA ) was prepared from diisopropylamine ( DIPA ) and diethyl sulfate ( Et _ 2 SO _ 4 ).以二异丙胺 ( DIPA ) 、硫酸二乙酯 ( Et2SO4 ) 为原料合成N, N二异丙基乙基胺 ( DIPEA ).Objective The study of effect of Diisop...
The ship came slowly into the harbour, dwarfing all the surrounding boats.轮船徐徐驶入港口, 使周围的船只显得矮小.In a severe gale the ship split in two...在一次大风中,船断成了两截。Nose your ship over into a dive to gain some airspeed.压低你的机鼻向下俯冲可以获得一些...
结论可吸收性珊瑚羟基磷灰石具有促进骨髓基质细胞表达成骨细胞表型、合成细胞外基质的功能,是良好的细胞载体.Conclusion The absorbable coral hydroxyapatite is a good bone tissue engineering scaffold.结果:tgfβ在宫颈鳞癌细胞浆及细胞外基质中均可见表达.Results TGF � � 1 expression was found in both cyt...
There has been a substantial amount of factionalism within the movement.运动中有大量的宗派之争。The overwhelming majority , including those who were obsessed by factionalism, were redeemable.绝大多数人, 包括被派性迷了心窍的人, 都可以挽救过来.The leadershi...
原先苹果酒里的任何杂质在蒸馏后都会凸现出来。Any faults in the original cider stood out sharply after distillation.一旦杂质沉淀下去,油就可以分级了。Once its impurities had settled, the oil could be graded.过滤器会滤掉水中的大部分杂质。A filter will remove most impurities fo...
古罗马人征服英国的时候也带来了这个风俗。When they conquered Britain, the Romans brought this custom with them.不谙当地风俗的游客visitors unacquainted with local customs他们按当地风俗举行婚礼.They kept to the custom to hold their wedding....
他在拍卖行、古玩店和跳蚤市场中寻宝。He finds material at auctions, antique shops and flea markets.葛丽泰·嘉宝想方设法躲开记者和摄影师。Greta Garbo went to great lengths to hide from reporters and photographers.贝夫用她一贯滑稽耍宝的方式逗她发笑。Bev made her laugh, the way ...