single-action compression

The results are as follows: ( 1) When the compression ratio is less than 8 ( 4.39 compression ratio 6.23), the theoretical COP of two-stage compression cycle will increase 4.16%-7.08% compared with that of single-stage compression cycle.

研究结果如下：（1）在压缩比小于8（4.39压缩比6.23）的工况下，与单级压缩制冷比较，采用双级压缩时理论循环制冷系数提高了4.16%～7.08%。

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Design of Air Intake Passages on Cross Flow Fan Box to The Effect of Its Comprehensive Performance Difference in comprehensive performance of split compression between two-stage and single-stage compression

横流风机箱进气流道的设计对其综合性能的影响斜盘压缩机两级压缩与单级压缩综合性能比较

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μ m, the slenderness ratio of less than 2 ∶ 1, the single particle of water and gypsum ratio is 0.22 and 3-days compression strength reached 61.1? MPa of alpha hemihydrated gypsum.

制备了二轴平均径12.5μm、长径比2∶1、单一粒径水膏比0.223、d抗压强度达到61.1MPa的α半水石膏。

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The Effect of the Single Dimple Initial Geometry Defect on Critical Load of External Compression Spherical Dome

凹圈型初始几何缺陷对外压球形封头临界载荷的影响

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The results show that bulk materials of PEEK obtained by rapid compression exhibit a single amorphous phase and high thermodynamic stability.

结果发现：快速增压制备的非晶聚醚醚酮具有更高的热稳定性和均一密实的结构。

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THE DESIGN AND PERFORMANCE ANALYSIS OF SINGLE-STAGE COMPRESSION REGENERATIVE REFRIGERATION CYCLE USING MIXED REFRIGERANTS Study on Characteristics of the Ejector in Quasi Two-Stage Compression Heat Pump Coupled with Ejector

混合工质单级压缩回热制冷系统的设计与性能分析准二级压缩&喷射复合热泵系统用喷射器的性能研究

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Based on 4105Q-diesel, single-fuel natural gas engine is developed with the removal of diesel injection system, proportion mixture device induction tract, throttle governor, and ignition system increased, and compression ratio reduced.

基于4105Q型柴油机为原型机开发的单燃料天然气发动机，去掉柴油机燃油喷射系统，增加比例式混合器供气系统、节流阀体、点火系统、降低压缩比。

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Performance analysis of single-stage compression or two-stage compression refrigerating cycle

单级压缩或双级压缩制冷的技术经济分析

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Monaxial compression test was used in the paper, both single-track method and bilinear method were used to contrastively analyze in the test.

运用单轴压缩试验，通过利用单、双线法试验结果的对比分析，总结出了盐渍土的溶陷变形随含水量和压力变化的规律及特点。

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When the compression ratio is over 8 ( 8.15 compression ratio 10.19), theoretical COP of two-stage compression will increase 9.01%~ 10.85% compared with single-stage compression.

在压缩比大于8（8.15压缩比10.19）的工况下，采用双级压缩时理论制冷系数比单级提高了9.01%～10.85%，排气温度可降低33°C～44°C。

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