查询词典 pendulum pump

Aimming at the fuel control requirement of micro-turbojet,the automobile's electric fuel pump with adaptable improvement is chosen as fuel-feed system.The performance of fuel pump and the technical difficulty of flux control as the speed of pump doesn't be measured are analyzed.Using Philips 83C552 MCU as the main control chip,the system adopts voltage negative feedback combined current compensation instead of rotation speed negative feedback and a PWM convertor to design the flux closed loop control system.

针对微型涡喷发动机的燃油控制要求，选用汽车用电动油泵进行适应性改进作为供油执行装置，详细分析了电动油泵的特性及泵转速无法测量情况下流量控制的技术难点，并以83C552单片机为核心，采用电压负反馈加电流补偿代替转速负反馈、电机通过PWM驱动的方法设计电动油泵流量闭环控制系统。

Brief introduction to raw water pump house: the raw water pump house is the intake pump station.

一、 简单介绍水源泵房：水源泵房是取水泵站，我厂采用四台双吸离心水泵取水。

At present, the use of domestic oil well pump rod to account for a large proportion of the number, most of which are plunger-type pump, conventional plunger pump's oil production has become one of the main.

目前国内油田使用有杆泵的井数以占很大比例，其中大部分是柱塞式抽油泵，常规柱塞抽油泵已成为主要的采油方式之一。

The merits of its performance, it is representative of the advantages and disadvantages of pump performance, the anti-clogging sewage pump performance, the level of efficiency and cavitation performance, anti-abrasion performance mainly by the pressurized water pump and leaves room to ensure that the two major components.

其性能的优劣，也就代表泵性能的优劣，污水泵的抗堵塞性能，效率的高低，以及汽蚀性能，抗磨蚀性能主要是由叶泵和压水室两大部件来保证。

Hydraulic dive drilling pump adopts variable hydraulic pump and dynamic cylinder as its power end and its fluid end is identical with the triplex single-acting piston pump.

摘 要 液压驱动的钻井泵采用变量液压泵和动力油缸组成液压钻井泵的动力端；液力端和现在使用的三缸单作用活塞式钻井泵相同。

In technical transformation of SNG-H300 high-pressure water injection pump ,LT3404 horizontal 3-cylinder single-action plunger pump substitutes original 2-cylinder double-action piston pump to improve technical performances and reliability and increase economic efficiency.

对SNC-H300高压注水泵进行技术改造，用"LT3404卧式三缸单作用柱塞泵"代替原有的双击双作用式二缸活塞泵，以提高技术性能和工作可靠性，提高经济效益。

Change of sodium pump activity is involved in hypoxic injury in rat cortical neurons. High affinity sodium pump is re lated to the protection of hypoxic injury and low affinity sodium pump is related to the hypoxic injury.

Na，K-ATP酶活性改变参与了皮质神经元的缺氧性损伤，其中高汞和力Na，K-ATP酶与皮质神经元缺氧性损伤保护作用有关，而低亲和力Na，K-ATP酶则与其缺氧性损伤有关。

The high water means the water pump impeller to the center line of the vertical distance, which permit smoking should not be confused on a high vacuum pump nameplate on product label instructions or permit smoking on the high vacuum pump is the inlet of the vacuum on the value of cross-section, and are at one standard atmospheric pressure, water temperature 20 degrees Celsius, the determination to carry out a test.

这个高度是指水源水面到水泵叶轮中心线的垂直距离，它与允许吸上真空高度不能混为一谈，水泵产品说明书或铭牌上标示的允许吸上真空高度是指水泵进水口断面上的真空值，而且是在1标准大气压下、水温20摄氏度情况下，进行试验而测定得的。

The high water means the water pump impeller to the center line of the vertical distance, which permit smoking should not be confused on a high vacuum pump nameplate or product label instructions on the permit smoking on the high vacuum pump is the inlet of the vacuum on the value of cross-section, and are at one standard atmospheric pressure; the water temperature 20 degrees Celsius, the determination to carry out a test.

这个高度是指水源水面到水泵叶轮中心线的垂直距离，它与允许吸上真空高度不能混为一谈，水泵铭牌或产品说明书上标示的允许吸上真空高度是指水泵进水口断面上的真空值，而且是在1标准大气压下；水温20摄氏度情况下，进行试验而测定得的。

Guangzhou Pump , Grundfos NSBasic, is a single-stage impeller and the two-stage impeller of the small end of the stomach pump , it has a cast iron pump , composite materials or cast ...

广州易泵贸易有限公司，格兰富NSBasic，是单级叶轮与双级叶轮的小型端胃泵，它具有的铸铁泵，复合材料或铸。。。

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。