R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.通过选择特定的同系物混合物, 可以达到应用性能的优化.By selection of specific homologous mixtures, application ...
鲁道夫看着红色的汽车尾灯急驰而去.Rudolf watched the red taillights speeding off.他头部中了从急驰而过的汽车里射出的三枪而身亡。He was killed by three shots to the head in a drive-by shooting.当汽车急驰而过时, 它将烂泥溅在我衣服上.As the car raced past, It'spattered mud on ...
提升机和发射台的外形也需要考虑.The elevation and configuration of the launch pad also require consideration.阿立马克提升机沿着罐道移动,罐道则用螺栓固定在天井壁上.The Alimak lift runs on guides which are bolted to the wall of the raise.提升机是高空作业吊篮的关键部件.Hoist is t...
Blake could see he had needled Jerrold, which might be unwise.布莱克看得出他已经惹怒了杰罗尔德，这也许并不是什么明智之举。His fingers clawed at Blake's wrist...他的手指紧紧抓住布莱克的手腕。Blake already owed him nearly £50...布莱克已经欠他将近50英镑了。I felt sorry for Bl...
他们生活在富饶的土地上.They lived on the produc - tive land.对自然界的深刻研究是数学最富饶的源泉.The profound study of nature is the most fertile source of mathematical discoveries.这是把一门富饶的语言放在了一片贫瘠的国土.A language of plenty for a land of scarcity....
Black walnut is extremely sensitive to damage from late spring frosts.黑胡桃对春天晚霜的危害非常敏感.I wish you would repeat chevy chase as you did yesterday: it was extremely funny.但愿你再念一遍猎歌,象昨天念的那样,真是太可笑了.Hongkong is resplendent , fl...