Hexamethylene diisocyanate ( HMDI ) may be used in prepolymer, in place of TDI.六亚甲基二异氰酸酯 ( HMDI ) 可用在预聚物中代替甲苯二异氰酸酯〔TDI〕.R is tetramethylene, pentamethylene, or hexamethylene.R为四甲撑 、 五甲撑或六甲撑.Hexamethylene diisocysnate ( H...
She wept when he ran down the gangplank; sobbed as he stood on the dock, waving.他急步走下跳板,她哭个不停.他站在码头上挥手, 她还在呜咽.The surface of the gangplank was bossed to prevent slipping.跳板的表面被装上凸出物以防止滑动.He hurries down the gangplank to ...
They travelled to Portsmouth, where they embarked on the battle cruiser HMS Renown.他们行至朴次茅斯,在那里登上了英国皇家海军“声望号”战列巡洋舰。His renown has spread throughout the country.他的名声已传遍全国.Mailly's work achieved little renown.梅利的工作没有获...