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- An adjustable width vacuum zone option is ideal for varying web widths and helps maintain efficient, quiet operation. 可调宽度真空地带选择适合不同网络带宽，并有助于保持高效率，安静的操作。
- 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。
- The Norwegians live in a comparatively cold zone. 挪威人生活在比较寒冷的地区。
- 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。
- Supplies were parachuted into the earthquake zone. 救援物资已空投到地震区。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- Some people live in Torrid Zone. 有些人生活在热带。
- I'd like to see Europe as a nuclear-free zone. 我希望欧洲成为无核区。
- The troops detrained near the battle zone. 部队在战区附近下了火车。
- 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。
- They are pulling their troops out of the battle zone. 他们正把部队调离战区。
- 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。
- They have declared their country a, nuclear-free zone. 他们宣布本国为无核区。
- 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
