Phenyl ( or polyphenyl ) substituted epoxides serve as excellent precursors to phenyl ( or diphenyl ) carbenes.某些苯代 ( 或多苯 ) 环氧乙烷是制取带苯环 ( 或二苯 ) 碳烯的极好原料.The epoxides were obtained with up to 90 % yields in the reaction sys...
He hit his forehead against the kerb when he fell.他摔倒时额头碰在了路边镶边石上.California's been particularly hard hit by the recession.加利福尼亚受经济衰退的影响尤为严重。He admits to having hit the lowest point in his life ...他承认自己跌到了一生中的最低谷。He...
Many of the world's farmers are also incurring economic deficits.世界上许多农民还在遭受经济上的亏损.He spoke to the Don directly, taking a chance on incurring Michael's ill will.他直接向老头子谈自己的意见, 这显然要冒引起迈克尔反感的风险.Contested Guardian...
结果: 脊柱手术后的视力障碍总发生率为0.094%.Results. The overall incidence of visual disturbance after spine surgery was 0.094 %.导弹预定由094型 ( 晋级 ) 核动力导弹潜艇携带.The missile was scheduled to be carried by the Type 094 ( Jin class ) nuclear - po...