这种燃料的例子是一甲肼和二硼烷.Examples of such fuels are monomethyl - hydrazine and diborane.手性唑硼烷酮能够催化不对称1, 3偶极加成反应并取得很好的效果.Asymmetric 1, 3 - dipolar cycloaddition can be strongly catalyzed by chiral oxazaborolidines.该不对称催化还原反应的控制步骤是...
a peculiar staccato voice特有的不连贯而且刺耳的嗓音Her pencil tapped out a staccato rhythm on the desk top.她用铅笔断断续续地敲击着桌面.On the street , firecrackers were bursting like the staccato hoofbeats of stampeding horses.外面万马奔腾似的爆竹声送进他的耳里....
The most popular spectator sport is football.观赏性强、最受欢迎的体育运动是足球。He was content to stand by as an impassive spectator.他满足于站在旁边做一个冷漠的旁观者。The role of a work is to communicate its message to the spectator.一部艺术作品的作用在于把它的含义传达给观...
Effect of basicity of electrode coating on desulphidation and dephosphorization is studied.通过试验研究了焊条药皮碱度对熔敷金属脱硫脱磷行为的影响.The experiments of dephosphorization of hot metal by using converter slagflux were performed in the s...
Their turf was Paris: its streets, theaters, homes, and parks.巴黎是他们的地盘：那里熟悉的大街、剧院、住宅和公园。The documentary opens tomorrow in movie theaters nationwide.这部纪录片明日起在全国各地的影院上映。Many theaters and cinemas have seats that can be tipp...