This article takes the vacuum column equipment for an example to do the external pressed vessel machinery design by using of computer programs.
本文以真空操作塔为例，辅助计算机程序以完成外压容器的机械设计。
However, vacuum column operations present an arduous environment for efficient fractionation, which makes upgrading product from bottoms to distillate more difficult.
然而，有效馏分的提取会使减压操作处境变得困难，也使塔底物料中蒸馏出更多的产品变得更加困难。
I sketched in part of the vacuum that's forming in the traditional banking business in my Oct. 27 column, "Why big Banks hate banking."
我10月27日的专栏文章《大银行为什么恨银行业》里，我略约地填补了传统金融业造成的部分真空。
The Model 1600a precision vacuum regulator features control sensitivity of 1 water column and a balanced supply valve for high precision.
示范1600a精密真空调节器控制1敏感性水柱和高精度供求平衡的阀门。
Switch on the vacuum to draw the solution through the column (The plasmid DNA binds to the column material).
开启真空装置使液体通过管柱（质体DNA会与管柱物质结合）。
After spring foundation are used for the turbine generator units the dynamic load is isolated and vacuum suction eliminated, which has greatly reduced the sectional size of the column.
该电厂汽轮发电机组使用了弹簧基础后，既隔离了动载荷，又消除了真空吸力，大大减小了立柱截面尺寸。
The gravity of this water column continuously produces the vacuum and so a vacuum pump is not needed.
水柱的重力不断地引起真空，所以真空管是不需要的。
A vacuum distillation column relates to a sulfolane distillation device in equipment for producing sulfolane.
真空精馏塔涉及一种生产环丁砜设备中的环丁砜精馏装置。
The utility model relates to a rotary-vane vacuum pump, which provides a column spiral torsional spring which is used for replacing a column spiral compressing spring.
本实用新型涉及旋片式真空泵，提供一种圆柱螺旋扭转弹簧，用它取代圆柱螺旋压缩弹簧。
One-Way Pressure Regulating Tower is effective to protect water hammer which is caused by discontinuous water column invited by vacuum inside the pipeline.
单向调压塔是一种用于防止管道系统中产生负压，导致水柱分离再弥合的水锤防护措施。
One-Way Pressure Regulating Tower is effective to protect water hammer which is caused by discontinuous water column invited by vacuum inside the pipeline.
单向调压塔是一种用于防止管道系统中产生负压，导致水柱分离再弥合的水锤防护措施。
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