Then he put his hand into pocket and took out a phrasebook.然后他把手伸进了衣袋,掏出一本常用语手册.Why did the man need a phrasebook?为什么这位男士需要一本常用语手册?Then he put his hand into his pocket and took out a phrasebook.然后他把手伸进衣袋,掏出了一本常用语手册....
白内障是一种影响晶状体透明性的疾病。Cataracts is a condition that affects the transparency of the lenses.硷金属卤化物能生长成具有优良透明性的大晶体.The alkali halides can be grown into large crystals of excellent transparency.仍然, 由于它所有的困难, 透明性通常比选择性更好.Still, ...
配置ABB磨头电机, 采用气动补偿抛光装置,传动平稳,抛光亮度高.ABB motor, air - operated polishing system for steadier feed and brighter polish.前磨头至安平 、 饶阳的地方铁路与之连接.Head to the former Anping, Raoyang connect with the local railway.主要介绍的工具有:钻咀(头) 、 磨盘...