将天然工质N2O用于跨临界循环，建立了相应的理论模型，比较了CO2和N2O用于跨临界两级压缩膨胀制冷循环的性能。
The results show that N2O plays a better comprehensive performance than CO2 in transcritical two stage compression expander refrigeration cycle.
IETF用来压缩HTTP内容的标准包括两级编码：内容编码和传输编码。
The IETF's standard for compressing HTTP contents includes two levels of encoding: content encoding and transfer encoding.
内容及传输编码：IETF用于压缩HTTP内容的两级标准。
Content and transfer encoding. IETF's two-level standard for compressing HTTP contents.
本文通过综合分析，选择将两级节流中间不完全冷却双级压缩循环应用于空气源热泵热水器以适用低温工况。
With comprehensive analysis, two-stage compression cycle is applied to air-source heat pump to adapt to the low-temperature environment.
该方法首先对人耳图片进行预处理，然后采用改进的两级2dpca算法，进一步压缩提取的人耳特征维数，最后采用BP神经网络进行分类识别。
First of all, pretreatment of human ear pictures was completed. Then an improved 2dpca algorithm was used to compress feature dimension. Finally, BP neural network was used in ear classification.
本机为L型、两列、两级、双作用、水冷、有十字头的固定式往复活塞空气压缩机。
This machine is of LV model, double-row, double-step, double function, water-cooling, and intercrossing, fixed, no basic reciprocating piston type air compressor.
结果表明两级喇曼压缩系统配偏振干涉能有效抑制主束谐波影响，以更高时间分辨测量等离子体的更高密度区域。
The result shows that with the aid of the probe beam, the electron density can be probed with a much higher temporal resolution and the disturbance of harmonic can be effectively avoided.
本机型为V型两列、两级、水冷的固定式往复活塞空气压缩机。
This machine V-6/7 is of V model, double-row, double-step, water cooling, fixed reciprocating piston type air compressor.
本机型为V型、两列、两级、水冷的固定式往复活塞空气压缩机。
This machine V-3/7 is of V model, double-row, double-step, water cooling, fixed reciprocating piston type air compressor.
本机型为V型、两列、两级、风冷的固定式往复活塞空气压缩机。
This machine VF-6/7 is of V model, double-row, double-step, wind cooling, fixed reciprocating piston type air compressor.
2skw系列两级水(液)环压缩机通常为双端面机械密封，机械密封的材料可根据压缩气体的性质具体确定。
2skw series two-stage water (liquid) ring compressors adopt double mechanical seal; the material for mechanical seal shall be defined according to the pressured gas nature.
2skw系列两级水(液)环压缩机通常为双端面机械密封，机械密封的材料可根据压缩气体的性质具体确定。
2skw series two-stage water (liquid) ring compressors adopt double mechanical seal; the material for mechanical seal shall be defined according to the pressured gas nature.
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