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By using this kind of miniature air compressor, energy source built-in type driving systems can be easily structured and tubeless pneumatic driving equipments can also be made.

正、负压一体化小型空压机是在现有的普通往复式空压机的基础上设计而成的。

A model for predicting aerodynamic stability of axial compressor in turbojet or turbofan engine is presented.

本文介绍一种模拟发动机压缩系统气动稳定性的数值模型和数值方法，并给出3个算例及其分析。

Turbojet engine ; Axial flow compressor ; Aerodynamic characteristic ; Numerical calculation

涡轮喷气发动机；轴流式压缩机；气动特性；数值计算

This article take some turbosupercharger air compressor as the research object, discussed based on the parameter actuation fluid analysis combination optimization technology universal significance.

本文以某涡轮增压器的压气机为研究对象，讨论了基于参数化驱动的流体分析组合优化技术的普遍意义。

The study on the design methodology of centrifugal compressor with low loss, high load, good performance under full condition and the CFD design of the turbo diffuser and volute is one of the front topics in the field of enhancing the turbosupercharger efficiency.

设计具有低损失、高负荷和良好全工况性能的压气机，以及对扩压器和蜗壳进行气动性优化设计是关系到提高涡轮增压器效率的前沿课题。

Therefore, it is necessary to do some researches on a twin-screw compressor.

可见，研究双螺杆压缩机具有十分重要的意义。

That can improve the mechanical performance of a twin-screw compressor further.

重点研究的是双螺杆压缩机的转子型线设计、几何特性、受力分析、热力学计算。

On the basis of thermodynamics, the mathematic model of the working process of water-injected twin-screw air compressor has been established.

本文以变质量热力学为基础，分析了压缩过程中的气、液两相的潜热和显热的交换，考虑了两种泄漏模型，建立了喷水螺杆空气压缩机工作过程的热力学数学模型。

Based on the force and moment balances on the shaft and compressor frame, mathematical formulation of shaft bearing loads, unbalanced force and moment acting on the frame were made in terms of balance weight design parameters such as masses and installations of the upper and lower balance weights.

分析了在二次平衡中，主、副平衡重的安装角为任意值的条件下涡旋压缩机的动力特性，推导了在保证机架受力情况最好的条件下，通过改变平衡重的安装角来控制主轴承受力的设计公式，从而确保了轴承的使用寿命，提高了压缩机的可靠性。

Uncontaminated water is normally used as seal water for vacuum pumps and for compressor cooling as well as for sanitary use.

未污染的水通常用作真空泵的密封水和压缩机的冷却水以及供保健用。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。