A proton is an elementary particle of matter.质子是物质的基本粒子。This particle has a very small mass.这种粒子的质量很小.The technique requires the coupling of a particle accelerator and a mass spectrometer.这种技术要求将粒子加速器和质谱仪连接起来。...
In each cycle of operation the particle picks up energy from the oscillating eletric field.粒子每运转一周都从振荡电场获取新的能量.The ferrography is a wear diagnosis technology based on the analysis of wear particle.笔者利用铁谱技术作为一种监测手段,通过磨粒分析...
Intolerance can take subtler forms too.过敏反应也可能会表现得很不明显。There are far subtler ways that sight bewitches and beguiles.运用视觉引诱蛊惑人有很多技巧.Nor even subtler connection, like the mind to the body.也不是这种联系比身体和意识的联系微妙.She felt an aff...
Hello, this is John Thompson.喂，我是约翰·汤普森。I owe a debt of thanks to Joyce Thompson, whose careful and able research was of great help.我要衷心地感谢乔伊斯·汤普森先生，他严谨而卓著的研究给予了我极大的帮助。Daley Thompson was a great athlete.戴利·汤普森是位著名的运动员。...
顺? 反 测验可以用来确定遗传的功能单位――顺反子.Application of the cis - trans test defines the genetic unit of function, the cistron.结果: 1.P3G9-L为单Lac启动子同时驱动Fd段及K链 的双顺反子的可溶性Fab段表达载体.Results: P 3 G 9 - L can express soluable Fab fragment and ...
Arsine is a colorless, poisonous gas that requires careful handling.胂是一种无色的有毒的气体需要小心地对待.Arsine is a toxic, colorless gas with a garlic - like odor at room temperature and atmospheric pressure.胂是一种无色有毒气体,在室温和大气压力下会发出类似大蒜的...
狗喜欢在泥水洼里扑腾，河马则喜欢在其中打滚撒欢儿。Dogs love splashing in mud and hippos wallow in it.他一进来，狗就开始摇头摆尾。As soon as he got inside, the dog shook himself.他们更加关心那些狗的安危，而非自己如何干净利落地脱身。They were more concerned about the dogs' welfare t...