讨论了三 氯甲基 苄醇和三 氯甲基 苄醇乙酸酯的合成方法,介绍了结晶玫瑰的应用.The synthetic method of trichloromethyl - benzyl - alcohol and trichloromethyl - benzyl - alcohol - acetate were reviewed , and the application of rosone were introduced.本文采用异氰尿酸与环...
stalling aerodynamics失速状态空气动力学vortex-flow aerodynamics旋涡流空气动力学aerodynamics of jets喷射气流动力学upper-atmosphere aerodynamics高层大气空气动力学supersonic aerodynamics超音速空气动力学cruise fan aerodynamics巡航风扇空气动力学aerodynamics of turbine涡轮(机)空气...
The Doyle couple put down a good supply of meats, eggs, wine and pickles.多伊尔夫妇贮藏了许多肉 、 蛋 、 酒和泡菜.Most people eat pickles at breakfast.大多数人早餐吃腌菜.Should pickles and tomatoes go on the same shelf?泡黄瓜跟西红柿能不能放在同一层架上?Our main p...
A Korean airliner was hijacked by two passengers and forced to fly to Tashkent...一架韩国的大型客机被两名乘客劫持，被迫飞往塔什干。An airliner came close to disaster while approaching Heathrow Airport.一架大型客机在飞近希思罗机场时差点儿发生空难。The pilot landed the ...
屋檐下挂着冰凌。There were icicles hanging from the eaves.在屋檐下筑巢的鸟birds nesting under the eaves燕子正在我们的屋檐下筑巢.The swallows are building a nest under the roof of our house....