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pumping system
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  pumping system
The repetition period will be 2 hours, and sampling will be by a winch-operated submersible pumping system which will continuously scan the radon-deficient layer.
      
An efficient pumping system made from association of cryo and turbo molecular pumps allows a background hydrogen pressure of ? 10-5 Torr during the growth.
      
The energy balance of the pumping system with the line is analyzed from the viewpoint of optimizing the pumping efficiency of metal-vapor lasers.
      
Results on this new fiber optic interface system are compared with those obtained previously with the traditional pumping system.
      
A traditional dissolution pumping system was recently replaced with a fiber optic interface between the spectrometer and the samples.
      
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Based on the theoretical analysis, a geothermal down-well pumping system cycle with R-113 as working fluid is suggested and its thermodynamic effects on the cycle system is treated.Analytical results show that the Pumping cycle system can be effectively applied at temperature about 160℃, i. e the lower temperature geothermal water well.

文中根据理论分析结果提出以低沸点物质F_(-113)为工质组成井下地热泵循环,并论证其热力学效果。指出该系统可以有效地用于160℃,即温度水平较低的地下热水井。

This article describes in detail an experimental arrangement for the residual gas analysis of forevacuum and provides a series of mass spectra for forevacuum achieved by common methods By a comparison and analysis between these mass spectra, it is possible to choose a suitable forevacuum pumping system for a clean ultra-high vacuum system.

本文详细地叙述了预真空残气质谱分析的设备和方法,并且提供了一系列目前常用的预真空获得方法的残气质谱图。通过对这些残气质谱的分析和比较,可以为清洁的超高真空系统选用一种合适的预真空获得方式。

A cryogenic pumping system to attain the temperat which is below the point for an atmospheric eryostat is described. Detailed description of the flow constrictor, choice of flow impedance for a practical cryostat is also given.

本文介绍一种用于获得λ点以下温度加压过冷态超流氦的低温减压系统。对该系统中的关键部件流量压缩器作了较详细的描述。最后,结合一个实用的2.17K液氦容器,给出了可供选择的流量阻抗值及其试验结果。

 
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