Based in the history and basic principles of screw compressor, this paper systematically studies, analyses and develops a new semi-hermetic screw compressor with a pair of speed increase gears and a new water chiller with the new compressor.

1、

Illustrates the superiority and inferiority of different motor cooling modes for full-or semi-hermetic screw compressor, and corresponding disposition and performance differences.

阐述三种常见全封或半封螺杆压缩机电机冷却方式的优劣，以及不同的电机冷却方式造成的在系统配置和性能方面的差异。

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2、

The streamlined body of4D and6D semi-hermetic compressors improves gas flow and oil management, and increases efficiency.

在四维及6D精简机构，半封闭压缩机提高天然气和石油流通管理，提高了效率。

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3、

The Analysis and Solution of the Motor-trouble in Semi-hermetic Compressor

半封闭压缩机电动机故障分析与排除

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4、

Direct-drive, semi-hermetic screw compressor for high reliability.

螺杆压缩机采用压差给油，更加安全可靠。

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5、

Application of Focal Sphere in Semi-hermetic Calcium Carbide Stove

焦球在半密闭电石炉中的应用

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6、

Noise Reduction Research of Semi-Hermetic Screw Refrigeration

半封闭螺杆制冷压缩机降噪研究

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7、

The paper provides a set of entire design principle about the semi-hermetic screw compressor and water chiller.

本文为半封闭螺杆压缩机和冷水机组提供了一整套完整的设计方法。

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8、

Research on Performance Improvement of Semi-hermetic Screw Refrigerating Compressor

半封闭螺杆式制冷压缩机性能改善的研究

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9、

Brief discussion about several problems of semi-hermetic screw water chiller for marine on operation

船用半封闭螺杆式冷水机组运行中的几点问题浅析

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10、

Application of programmable controller in energy saving control of semi-hermetic calcium Carbide furnace

可编程控制器在半密闭电石炉节能控制上的应用

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11、

Innovation on the Production Process of Semi-hermetic Calcium Carbide Furnace

半密闭式电石炉生产工艺的改进

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12、

The shock-capturing properties of the method are verified by solving the MHD shock-tube problem. Then the 2-D nozzle flow with the magnetic field is numerically simulated on the unstructured mesh.

通过对磁流体激波管问题的求解验证了该方法对激波的捕捉能力，对有均匀磁场干扰下的喷管流动情况进行了数值模拟，并与文献中结果进行了对比。

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13、

A new shock-capturing method was proposed which is based on upwind schemes and flux-vector splittings.

在迎风型格式和矢通量分裂技术的基础之上，对捕捉激波方法进行一种新的尝试。

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14、

It is known that for some of the traditional shock-capturing schemes, such as the Godunov or Roe type methods, will generate downstream oscillatory wave patterns that cannot be effectively damped by the dissipation of these schemes.

众所周知传统的一些激波捕捉格式（如Godunov，Roe格式）仪靠格式本身的耗散无法完全抑制激波下游的振荡。

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15、

Thus, the ENO schemes have better shock-capturing ability.

这样，ENO格式就具有较好的激波捕捉能力。

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16、

Aiming at the reliability problems in the elevation-balancing machine, traversing machine and self-filling equipment, this paper completes the parameter optimization design and simulation research for movement reliability.

针对高低平衡机、方向机和自动装填机构的可靠性问题，进行了动作可靠性参数优化设计与仿真研究。

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17、

That-like the brave new world of self-driving cars and self-filling washing machines-may help but a gap remains.

这——就像无人驾驶汽车和自动添衣洗衣机的美丽新世界——或许会有所帮助，但差距依然存在。

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18、

Methods282medical persons from a certain municipal hospital were observed using structure case by self-filling to collect data and analysis.

方法以某市级医院282位医护人员为调查对象，采用自填式结构性问卷进行资料收集、分析。

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19、

It mainly explains the nouns by means of word combination and sentence construction.

主要从组词和造句等两方面进行了探讨。

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20、

An idiom is a group of words which, when used together, has a different meaning from the one which the individual words have.

一个成语就是一组词，当结合在一起使用时，其意与单个词语所表达的意思均不相同。

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