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- The series H rotary piston vacuum pump is a sort of vacuum production eauipment suitable for pumping ordinary gases and conde nsable gases (when a gas ballast used). 一、H型系列滑阀式机械真空泵是抽除一般性气体或含有少量可凝性气体（此时应使用气镇）的真空获得设备之一。
- LIFE CYCLE. QGVI vacuum products are designed with compressor duty bearing in a compressor service airend. This translates into extended product life and lower cost of ownership. 长寿命周期。QGVI真空产品的主机里设计有重负荷轴承。这有助于延长产品寿命，降低维护费用。
- If you consider them, be sure to check out the Miele Powerhouse Upright Vacuum cleaner, here at the Bank's Vacuum Super Stores, covering a range of Miele vacuum products. 新近流行手工敲边地板，它产生的不规则边缘能增强立体感，还原木制历史感，就像顶级皮具需要做旧来表现怀旧，两者异曲同工。
- Study on coal-cling of direct mangnesium vacuum production 真空法直接炼镁工艺中的煤烧结研究
- Reasonable Application of the Vacuum Production Device in IC Production Process IC生产工艺中真空获得设备的合理应用
- 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。
- Demand is outstripping current production. 现在需求逐渐超过了生产能力。
- 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。
- A new problem has been reared up in production. 生产中出现了一个新问题。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- I hope you try to get them to step up production. 希望你们尽力使厂家增加生产。
- A vacuum cleaner is a handy household tool. 吸尘器是一种使用方便的家庭用具。
- That car went out of production five years ago. 那种汽车已经停产五年了。
- The shop repairs vacuum cleaners. 这家店修理吸尘器。
- The ducks of the production team have been fed out. 生产队的鸭子已养肥到可以上市了。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- We've scaled up production to meet demand. 我们已经扩大了生产以满足需求。
- We must streamline our production procedures. 我们必须精简生产程序以提高效率。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
