This is a Geiger counter for detecting radioactivity.这是一种盖革计数管,用来测量辐射的.A metal called uranium gave off a kind of radiation, which Marie Curie later called radioactivity.一种叫铀的金属发出一种射线, 后来玛丽·居里把这种现象称为放射性.The site was found...
当定购这种硅碳棒时,提供额定电阻是非常重要的.It is important to provide the nominal resistance when ordering.这种硅碳棒的连桥结构正是在此基础上去除了任何焊接部分.The Element construction addresses this by eliminating any welds in this area.当熔炉内温度在操作范围内时DB型 硅碳棒可以被替换.DB...
当压强趋近于零时, 分子的碰撞就停止了.For the pressure to become zero , molecular bombardment must cease.低的基本压强也是保持表面清洁所要求的.Low base pressure is also a requirement to keep the surface clean.压强的不相等导致气体运动.Pressure inequalities generate gas ...
The squad members paired off to find places to eat and sleep.小组成员结对儿找地方吃饭睡觉。Smokers and nonsmokers are paired up as roommates.吸烟者和不吸烟者被配对儿成为室友。The scouts paired off and began to patrol the area.巡逻人员两个一组,然后开始巡逻这个地区....
For some reason he thinks everyone is out to get him, but he's really just tilting at windmills.不知为什么他觉得每个人都想害他, 但其实他不过是在庸人自扰.Windmills are a characteristic feature of the Mallorcan landscape.风车是马略卡岛风光的一大特色。The suga...