LS series wet roots vacuum pump is a rough vacuum pumping equipment.
LS型直排大气湿式罗茨真空泵属粗真空获得设备。
Use a device, the battery, then play a vacuum in shell steel vacuum pumping, are short, high efficiency.
采用一套装置，将电池壳体抽真空，然后打钢珠，抽真空时比较短，效率高。
DE la villette vacuum pump suction such repeated cycle will air in the container to forming a vacuum pumping.
吸粪车真空泵这样反复循环，将容器中的空气抽去形成真空。
Liquid nitrogen is adopted as protective atmosphere in bell type furnace for which vacuum pumping system are provide also.
在罩式电炉内处理，采取液氮作为保护气体，并设真空抽气设备。
However, in the conventional vacuum pumping tests, fine particles did not lost and there was clogging without arching structure layer.
而常规真空抽水方法中不存在细颗粒流失，没有形成拱架结构，造成了淤堵。
At the appropriate pressure, the chamber is opened to a high-vacuum pumping system that continues to reduce the pressure of the process chamber.
在适当的压强下，工艺室被接通高真空泵系统抽气，以继续降低工艺室的压强。
Gonghua brand series diffusion pump oil is the work fluid used by metal diffusion pumps and glass diffusion pumps in the process of vacuum pumping.
巩华牌系列扩散泵油是金属扩散泵及玻璃扩散泵真空抽气时使用的工作液。
The use of our company with independent intellectual property rights "open continuous vacuum pumping Filter" patent technology (patent no. ZL 97 2 49817.6).
我公司运用拥有自主知识产权的“开放式连续型真空抽滤池”专利技术(专利号为ZL 97 2 49817.6)。
The system of VPI equipment mainly includes vacuum chamber, heating unit, worktable with its drive unit, vacuum pumping unit, gas-charge unit and control unit, etc.
该设备主要出密封罐、加热系统、升降工作台、真空系统、充气系统、控制系统及密封罐水冷系统等组成。
Based on vacuum pumping accompanied with throttling process, presenting several superfluid helium cooling cycles and analyzing their flow principle and cooling characteristic.
以抽真空与节流相结合为基础，给出了几种超流氦冷却循环方式；分析了这几种方式的流程机理和冷却特性。
The full-automatic vacuum box has the advantages of simple and reasonable structure, safe and convenient operation, high vacuum pumping efficiency and wide range of applications.
其结构简单合理、操作安全方便、抽真空效率高、适用范围广。
Steam is key medium for vacuum pumping of RH refining furnace. Direct use of converter steam in production is a difficult problem that has been solving in metallurgic enterprises.
蒸汽是RH 精炼炉真空泵抽真空所需的关键介质，直接将转炉蒸汽用于生产是国内冶金企业一直在解决的难题。
B. water-filled pump start before the pump casing and suction pipe must be full of water that is because of the presence of air vacuum pumping the population can not be formed and maintained.
陈籍水泵在启动以前，泵壳和吸水管内必须先布满水，这是因为有空气存在的情况下，泵吸人口真空无法形成和保持。
On this basis, the difference between the limited lift by vacuum pumping and the effective depth of vacuum preloading is analyzed and the reason of the latter may greater than the former is analyzed.
在此基础上，比较了真空提水的极限深度和真空预压有效加固深度的不同，分析了真空预压有效加固深度大于真空提水极限深度的原因。
The project started out with a Ph.D candidate, Riccardo Signorelli, using tweezers to put tiny squares of aluminum into a vacuum chamber and then pumping in a hydrocarbon gas.
这个项目是由博士研究生richccardoSignoreli首创的，他用镊子把正方形的小块铝片放到真空室中，然后鼓入烃气。
Sprinkler pump shell cracks, or impeller, leaf damage, or seal damage, will affect the degree of vacuum, water pumping, water pressure is too small or the phenomenon.
洒水车水泵泵壳出现裂纹、或者叶轮、倒叶损坏、或者水封破损，都会影响真空度，出现水抽不上来，或者水压过小的现象。
At the same time equipment can be operated while pumping vacuum.
同时设备可以边运转边抽真空。
In addition to pumping air and no condensate and other non-corrosive gases, widely used in pumping speed and the need for high vacuum of truth in this system.
适用于抽除空气及其它无可凝性及无腐蚀性的气体，广泛应用于需要大抽速和高真空的各种真这系统中。
The pumping speed is predicted according to the vacuum-pumping program, and it is very instructive and meaningful for choosing the vacuum pump in the succeeding phase.
最后针对此方案，对真空泵抽速进行了预测，这将对后续阶段真空泵的选型具有指导意义。
The Neutral Beam Injection (NBI) system requires a clean high vacuum environment. The liquid helium cryocondensation pump with high pumping speed is an ideal vacuum obtain device.
中性束注入系统要求有洁净的动态高真空环境，大抽速液氦冷凝泵是满足此要求的理想真空获得设备。
In this paper, the pumping principle, definition, performance of dry vacuum pump and its applications are described.
本文介绍了干式真空泵的抽气原理、定义和特点及其应用，最后简述了干式泵抽除颗粒物质的措施和方法。
The upstream pumping mechanical seal was used as shaft sealing of vacuum plants.
研究了上游泵送机械密封在真空装备轴封中的应用。
In this paper, the pumping principle, definition, performance of dry vacuum pump and its applications are described. Then briefly introduce the method to pump the particulate material with dry pump.
本文介绍了干式真空泵的抽气原理、定义和特点及其应用，最后简述了干式泵抽除颗粒物质的措施和方法。
A newly developed BBH pre - vacuum - pumping carburizing furnace has been introduced in this paper.
介绍了新研制的预抽真空式可控气氛气体渗碳炉。
Fourth step, to the host pumping a vacuum, plus the amount of refrigerant oil and refrigerant.
第四步，给主机抽真空，加适量冷冻油和冷媒。
We show that the refular pumping statistics and atomic coherences can reduce the field noise of multiple one photon optical bistability, but can not result in field squeezing from an ordinary vacuum.
证明了亚泊松泵浦及原子的相干性可使多单光子双稳态的光场噪声降低，但不能产生光场的压缩效应。
The vacuum filling gas package is used for safe-deposition such as the foodstuff and old book long time by pumping and filling in with Nitrogen.
真空充气包装贮存是通过抽真空和充入氮气来处理粮食及馆藏古籍等物品，从而保证它们在长期储藏时不易变质。
High vacuum and the average pumping method are applied for the manufacturing of stable products and improving the quality and productivity.
真空度高，采用平均抽法，可使产品稳定，提高品质及产能。
In design of a vacuum system, generally it concerns distinguishing the regions of gas flow, the conductance of tube, the pumping speed and the pressure of system etc.
在真空系统的设计中，一般涉及到流态判别、流导、泵的抽速和系统的压力等参数。
In design of a vacuum system, generally it concerns distinguishing the regions of gas flow, the conductance of tube, the pumping speed and the pressure of system etc.
在真空系统的设计中，一般涉及到流态判别、流导、泵的抽速和系统的压力等参数。
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