您要查找的是不是：
- 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。
- vacuum volts 真空电压
- 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
- I sizzled in his blue volts like a desert prophet. 我焦灼在他蓝色的雷电里好象沙漠上的先知。
- You shall know the meaning of volt. 你应知道"伏特"的含义。
- Electricity in Britain is 240 volts, AC. 英国的电压是交流电240伏。
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
- B:These are for one hundred volts,AC and DC. 这些适用一百伏特的电压，交流电和直流电都可以。
- 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。
- These are for one hundred volts,AC and DC. 这些适用一百伏特的电压，交流电和直流电都可以。
- 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
- Ionization energy (ie) 3.894 electron volts. 电离能3.;894电子伏特。
- Oh, I see it's given 100 volts, 20 amps. 噢!我看到这儿有标示:交流电一百伏特；二十安培。
