较轻的推进器采用液态氢, 较重的采用自燃推进剂.The lighter version used liquid hydrogen, the heavier used hypergolic propellants.磷化氢是一种有毒气体,在空气中可以自燃.Phosphine is a toxic gas which ignites spontaneously in air.它们也可作为自燃点火成分,改进点火和重新点火性能.They also...
The President is determined "to go the extra mile for peace".总统决心“为实现和平而加倍努力”。Sandra was determined to become a doctor and her persistence paid off.桑德拉决心成为医生，她的坚持取得了成功。The identities of the deceased have now been determi...
同时，把碗置于微沸的水上，将白巧克力放入碗中使其熔化。Meanwhile, melt the white chocolate in a bowl suspended over simmering water.狐狸、獾、黄鼠狼和白鼬在这里很常见。Fox, badger, weasel and stoat are regularly seen here.索米尔周围的白垩质土壤出产著名的安茹葡萄酒。The chalky soil around...
John gently disengaged himself from his sister's tearful embrace.约翰轻轻推开抱着他哭泣的妹妹。His front brake cable disengaged.他的前轮刹车索断了。She gently disengaged herself from her sleeping son.她轻轻地放下怀中熟睡的儿子。...
介绍了一种在石油加工过程中产生的特殊副产物 - 硬沥青.The byproduct of petroleum industry - hard pitch andphysical and chemical properties are introduced.摘要介绍了一种在石油加工过程中产生的特殊副产物 - 硬沥青.The byproduct of petroleum industry - hard pitch is recommende...
Hysteroscopy can also be used to diagnose intrauterine adhesions.宫腔镜也能诊断宫腔粘连.Intrauterine wall, jewels set into flowers Jia Hui, glamorous.宫内墙上, 珠宝镶成繁花佳卉, 光彩照人.Intrauterine devices ( IUDs ) are safe and effective forms o...