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。
- 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
- Dirt and dust are drawn into a vacuum cleaner by suction. 污物和灰尘被吸入吸尘器。
- Guangzhou ULTRA UNION Chemicals Ltd. 广州超邦化工有限公司。
- 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。
- Add ultra and lovely role personages. 加上超可爱的角色人物。
- Put the article and culture needed on the ultra. 把接种所需要的物品和培养基在超净工作台上摆好。
- 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
- Ultra Bright LED as light source and is an. 灯为光源的水晶吊牌。
- Ultra simple design, what u get? 由此极度简单的造型，能想到什么！
- Dust chambers, ultra low industrial freezers. 吸尘室，超低温工业冷冻机。
- The life grants often the ultra your imagination. 生命的赏赐往往超乎你的想象。
- Biotherm AqauSource Ultra Cool Hydrating Water-gel. 不知道和楼上说得是不是同一个东东。
