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Temperature distributions in a display case controlled by thermostatic expansion valve and electronic expansion valve are studied in this paper.

对热力膨胀阀和电子膨胀阀控制下陈列柜内的温度分布做了实验研究。

Our company enjoys leadership in high-cycle application fields and spectrum, assistance in resolution of unused technical application of each industry in terms of automatic temperature control, high-tech field, such as vacuum specific heating automatic test, heart valve automatic melting, electric accelerator power, optical fiber heating, stainless boiler double bottom, aluminum foil sealing, platinum and gold casting, dental and medical equipment, high-cycle plate connection, curve wood shaping, car carpet and space valve welding etc.

并在自动温度控制、高科技领域，如真空比热自动测试、心脏瓣膜全自动熔炼、电子加速器电源、光纤加热、不锈钢锅复底、铝泊封口、铂金黄金浇铸、齿科及医疗仪、高周波拼板、曲木成型、汽车地毯和空间膜焊接等。本公司是高周波应用领域接触面最广、帮助各行业解决技术应用空白点最多的企业之一。

Check up double-stop valve and examine whether the switch of pressure meter opens or not, vent valve close or not.

1.2 检查双联截止阀及压力表开关是否已打开，放气阀是否已关闭。

But the standard deviation of aeration downflow was much less than that of aeration horizontal.

在下降管中心通气时，固体流量下降明显且气体易快速进入至 L-valve 水平段，使得 L-valve 水平段的标准偏差增加。

By means of the K-ε turbulence model and finite element method, the flow of the fluid in the valve and the piston during a cycle of pumping is simulated and calculated. The motion law of the crude oil in the valve passage and concentric annulus in the upstroke and downstroke is analyzed.

针对杆式泵泵简内的流体流动问题，采用湍流模型的K-ε两方程模型和有限元方法，对在一个抽油循环中阀与活塞在几个特定的位置的流体流动进行了建模与计算，具体分析了处于阀道内和同心环状空间中的原油在上下冲程的运动规律。

The advantages and disadvantages of using duckbill valve in sea outfalls are discussed in this paper, and the suitable conditions to use duckbill valve in outfall are put forward.

对排海工程中应用鸭嘴阀的利弊进行了分析，提出了鸭嘴阀在排海工程中的适用条件。

Is a dynamic balancing valve local resistance to change spending components. When balancing valve and differential

动态平衡阀是一个局部阻力可以变化的节流元件。

Gas Withdrawal Valve (11): This valve allows gaseous product withdrawal through the internal vaporizer and/or the economizer.

气体提取阀（11）：这个阀门允许通过内部的蒸发器和/或节热器来提取气体产品。

It mainly studys approximate engineering synthesis algorithm about effective cross section area of valve, Sa, which synthesis by geometrical cross section areas of restrictor in valve flow channel.

重点研究了由阀流道节流口几何截面积合成阀有效截面积 Sa 的近似工程合成算法。

With the development of pneumatic technology, electromagnetic valve coil power getting smaller and smaller, while the PLC 's output power increases, so that between the solenoid valve and the PLC eliminates the need for a number of intermediate links, so that control system becomes easier.

随着气动技术的发展，电磁阀的线圈功率越来越小，而 PLC 的输出功率在增大，使电磁阀与PLC之间省去了许多中间环节，使控制系统变得更简单了。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。