很多书现在都用盲文印.Books are now printed in braille.现在还有用布莱叶盲文印的书.There are books printed in braille.他懂得聋哑人交流用的“盲文”.He knew the finger alphabet, whereby the deaf and dumb communicate....
Useing unsaturated urethane , 2 - ethylhexyl acrylate, crosslinking agent, high oil - absorbent resin was prepared by suspension polymerization.用不饱和氨基甲酸酯 、 丙烯酸异辛酯和交联剂, 以悬浮聚合的方法制备高吸油性树脂.Ferric sulfate was first used for t...
“我们是警察，”直升机上传来扩音器中的声音。"This is the police," came the amplified voice from the helicopter.我清楚地听到扩音器里在请都灵至阿姆斯特丹航班的旅客登机。I distinctly heard the loudspeaker calling passengers for the Turin-Amsterdam flight.他们把吉他与扩音器相接。They p...
A wombat stops in front a ranger's vehicle.袋熊停在护林员的车辆前面.In the Ranger area highly chloritic rocks were believed to be altered dolerites.兰杰地区的强烈绿泥石化岩石据信可能是蚀变粒玄岩.Ranger : Surveil - Range lowered to 35 meters from 50 m...