聚羟基乙酸的经典制备方法主要有两种:直接缩合聚合法和乙交酯开环聚合法. There are two means available for the preparation of PGA - synthesis polymerization and ring - opening polymerization.
它的成员缺乏视整个运动为一体的意识.Thus, members had very little sense of identity with the movement.是一座集住宿 、 餐饮 、 娱乐 、 商务 、 购物于一体的多功能酒店.Is a set accommodation, catering, entertainment, business, shopping in one multi - functional hotel....
Angelo Peruzzi was extraordinary, especially in his stoppage - time save on Luca Toni.安杰洛.佩鲁济的表现是非凡的, 特别是他扑出鲁卡.托尼的瞬间射门.The idea of Toni being in danger distresses him enormously.想到托尼正处于危险中，他心急如焚。...the busty and rumbusti...
He muddies himself face.他使自己的脸上沾着泥.Corporate sprawl distracts managers, diverts resources and muddies valuations.公司扩张吸引管理层, 转移资源和扰乱估价.Finally, it applies South Korean exchange - rate valuations to the North, which also m...
You won't find a couple more in the public gaze than Michael and Lizzie.没有比迈克尔和莉齐更受人瞩目的夫妇了。Lizzie used to play the violin.莉齐曾经拉过小提琴。A large terracotta pot planted with Busy Lizzie provides a fiery bright red display...
他的衣服被口水浸湿了。His clothes are soaked in dribble.他双手被汗水浸湿了。His hands were wet with perspiration.那个侍女把拖把放进桶里浸湿,用来擦地.The maid plunged the cloth into the pail and cleaned the floor....
Only a third of these households thought it reasonable to meter water.这些家庭当中只有三分之一认为用水表计量是合理的。In 1990, 25% of households were of this type.1990年，25%的家庭属于这种类型。More than half of all households report incomes above £35,000....