您要查找的是不是：
- Perform the vacuum test using HF Electric- Spark Vacuum Tester. 用高频电火花真空检测仪检测真空。
- relative and absolute vacuum tester 相对真空及绝对真空测试器
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活变得空虚。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- A vacuum cleaner is a handy household tool. 吸尘器是一种使用方便的家庭用具。
- The shop repairs vacuum cleaners. 这家店修理吸尘器。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- Sealed under low pressure or a partial vacuum. 抽空密封的在低压或部分真空状态下密封起来的
- vacuum tester 真空检验器
- can vacuum tester 罐头真空表, 罐头真空检测仪
- A dead-weight tester is shown in Fig. 8. 静重试验器如图8所示。
- Place the tester adapter over the opening. 把试验器连接装置放在加油口上。
- Schopper -Riegler freeness tester S. R. 游离度测定仪。
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
- We could not pull apart two plates which enclosed a vacuum. 如果两个盘子间是真空，我们就无法将它们分开。
- Remember the goal of a software tester? 还记得软件测试人员的目标吗?
- Operating by means of suction or by maintaining a partial vacuum. 抽真空的用吸取的方式或用维持部分真空的方式来运作的
