The pump has a two-stage, end suction, horizontally mounted back pull-out design for hot, abrasive and corrosive liquids.
该泵为两级、轴向吸入，卧式安装的后拉式泵，适用于热的、磨蚀的和腐蚀的介质。
Presents the two-stage heat pump test-bed designed by the authors, analyses the problem existed in experiment and offers the improving method.
介绍了自行设计的双级热泵实验系统，分析了实验中遇到的问题，提出了改进方案。
A two-stage compression variable frequency air source heat pump (TV-ASHP) has been developed combining variable frequency technology with two-stage compression cycle.
将双级压缩和变频技术有机结合，提出一种适用于寒冷地区双级压缩变频空气源热泵系统。
With comprehensive analysis, two-stage compression cycle is applied to air-source heat pump to adapt to the low-temperature environment.
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。
Two-stage heat pump system is an important research direction which can acquire high temperature working fluid.
双级热泵系统是获得高温工质的一个重要研究方向。
For circuits design, the thesis designs a switch capacitor comparator circuit, a two stage amplifier, a digital correction circuit and a clock pump-up circuit.
在具体的电路设计中，主要研究设计了一个开关电容比较器、一个两级运算放大器、数字校正电路和一个时钟提升电路。
This pump is two-stage structure: with the pump cover with centrifugal work between clapboard wheel - the first level;
该泵为两级结构：泵盖与外隔板间装有离心工作轮——第一级；
The utility model provides a double-stage slide valve vacuum pump, which consists of an air pipe and two slide valve cylinders.
一种双级滑阀真空泵，由气路管道和二级滑阀缸组成。
One-stage or two-stage pumps feature up and down movement of flexible diaphragm during the mechanical stage which induces a flow of gas through the pump head, generating a vacuum.
单级或双级泵是通过橡胶膜片上下往复运动，引导气流通过泵头，形成真空状态。
One-stage or two-stage pumps feature up and down movement of flexible diaphragm during the mechanical stage which induces a flow of gas through the pump head, generating a vacuum.
单级或双级泵是通过橡胶膜片上下往复运动，引导气流通过泵头，形成真空状态。
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