When there is vacuum in the intake manifold, the vacuum holds the diaphragm up.
当进气歧管有真空存在时，真空便向上吸引膜片。
The size of the vacuum and pressure regulating valve by rotating knob to adjust.
真空与压力得大小可通过旋转调节阀旋扭来调节。
Analysis the Reasons of Affecting Vacuum Degree of Steel Liquid Vacuum Degas System
影响钢液真空脱气系统真空度的原因分析
AC motor driven and controlled by vacuum blower, it will go through dust bag filter.
由交流电动机驱动，负压风机控制，除尘袋过滤。
Low Vacuum Liquid Filling Machine used for Filling of High Adhere Degree Fruit Juice
用低真空负压液体灌装机灌装粘度大的果汁饮料
The vacuum system utilizes two vacuum pumps and one booster pump to achieve a vacuum.
真空系统采用两台真空泵和一台罗茨泵来实现真空。
The use of vacuum suction and positive pressure fan to absorb and dry wind mosquitoes.
运用风扇负压吸力及正压风力来吸附和风干蚊子。
Economical wet and dry vacuum cleaner with an extensive range of standard accessories.
经济型吸尘吸水机, 其标准附件配置齐全。
Water ring type vacuum pump release vacuum of inhaling, can economize the electricity.
水环式真空泵抽吸真空, 可节约电力。
The vacuum degas unit consists of vacuum degas machine, vacuum pump and acentric pump.
真空脱气机组包括真空脱气机，真空泵及离心泵。
Nature abhors a vacuum, journalism even more so, and so it fills absence with windiness.
大自然憎恶真空，新闻报道更不能容忍缺位。
Adopted with double taps. fixed with two vacuum meters used independently or parallelly.
本机采用双抽头，可单独或并联使用装有两个真空表。
The invention discloses an inner core accelerating cyclone separator of a vacuum cleaner.
公布了一种用于真空吸尘器的内核加速式旋风分离器。
The effect of limiting vacuum of vacuum pump on the speed of film flattening is analyzed.
分析了真空泵的极限真空度对胶片展平速度的影响。
Present Status and Development Trend of Vacuum Detection Technique in Vacuum Interrupter.
真空灭弧室真空度检测技术的现状和方法
The machine adopts enclosed heating and vacuum forming to make the vamp fit with the last.
该机利用密封式加温，真空成型，使鞋面与楦头吻合。
Company substantial supply of vacuum cleaner accessories, bread, cutlery and other products.
公司大量供应吸尘器配件，面包机，餐具等产品。
The Characteristic or Vacuum Arc and the Appearance of Vacuum Arc of Some Metal Most in Use.
真空电弧的特点及几种常用金属的真空电弧现象
The densification of SiC composite powders was accomplished by vacuum pressureless sintering.
采用真空无压烧结进行碳化硅复合粉体的致密化烧结处理。
Rotary piston pumps always used as backing pumps of vacuum systems in vacuum induction ovens.
真空感应炉真空机组中的前级泵，历来使用滑阀泵。
Absorb gun adopted hot desoldering and strong power vacuum pump to clean up the tin efficient.
吸锡枪利用热风加热及强力真空泵吸锡，除锡快净。
Use Vacuum Casting System to produce accurate wax models necessary for the Metal Part Process.
用真空注蜡机为金属铸件造出精确蜡模。
There are often some normal faults vacuum system of Zr vacuum distilling furnace in production.
锆真空蒸馏炉得真空系统生产中经常出现故障。
The change of the surface figure accuracy is not obvious after dynamic and thermal vacuum tests.
经过力学与热真空环境试验后, 反射镜面形变化不明显。
NUMERICAL SIMULATION ON VACUUM PLUME AND NUMERICAL ANALYZING STUDY ON VACUUM PLUME CONTAMINATION
真空羽流的数值模拟及真空羽流污染的数值模拟分析研究
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