The device is equipped with a cryogenic pump, an oil diffusion pump and a mechanical pump.
该机抽气系统由低温泵、扩散泵和机械泵组成。
A check valve (3) can prevent the natural chemical absorption water head of the water head when the manual pump or the mechanical pump stops to work.
止回阀(3)起当手压或机械泵停止工作时能阻止水位差的自然吸药。
Secondly, the shape Size and mechanical interface with the mechanical pump-line similar to the existing models on the installation is very convenient;
第二，外形尺寸和机械接口与机械式直列泵相似，在现有机型上安装很便利；
Discusses the relationship between pumping speed and inlet pressure of an oil-sealed mechanical pump and the reason why its pumping efficiency drops down.
该文介绍了油封机械泵的抽速与入口压力的关系、泵抽气效率下降的原因，指出泵入口管道的流导和油蒸汽逆流是造成泵抽速下降的主要原因。
First the regular mechanical pump was tried out. It is an external device that can only be used in an ICU and is intended to support a patient for a month or two.
第一次普通的起搏器耗竭了，这是一种只能在ICU使用的外用装置，能够维持一到两个月。
The methods to enhance the modeling precision for the universal GM(1,1) applied to predicting the development of a mechanical pump based on vibration features were studied.
建立了基于机械系统振动特征量的时间序列趋势预测GM（1，1）并进行了后验差精度检验；
Vacuum pump is a relatively sophisticated equipment, it's working medium is a special high boiling point, low-volatile oil pump, its effectiveness depends on the mechanical pump and pump oil quality.
真空油泵是一种比较精密的设备，它的工作介质是特制的高沸点、低挥发的泵油，它的效能取决于油泵的机械结构和泵油的质量。
Finally there are mechanical skimmers - ideal for retrieving heavy oils - which use metal tooth discs, grab buckets and drum separators to remove the oil then pump it into a tank.
最后还有从回收重油方法改进而来的机械分离器，采用金属齿轮盘将油捞起，然后采用分离机将油分离出来放到储罐中。
Mechanical seal: this type is especially suitable for multi-stage slurry pump in series and without leakage.
机械密封：该形式的密封特别适用于多级串联渣浆泵的密封，完全无泄漏。
Mechanical seal with tungsten carbide hard wear-resistant, with durable, wear-resistant characteristics, can pump more than 8000 hours of continuous operation safe.
机械密封采用硬质耐磨碳化钨，具有耐用、耐磨等特点，可以使泵安全连续运行8000小时以上。
A sophisticated triple mechanical seal system prevents leakage of the pumped fluid whilst highly polished pump internals minimize damage to the forming polymer chains.
三道机械密封防止介质的泄漏，同时泵内部的高度抛光降低了对形成的聚合物链的损害。
Pump shaft seals use mechanical seal, pump top and bottom, respectively, equipped with water injection plug and the drain plug.
泵的轴封采用机械密封，泵体顶部和底部分别装有注水、放泄的螺塞。
In manual, automatic sterilization without mechanical seal leak-off filling materials plus acid add alkali peristaltic pump, with beautiful and dignified equipment.
在位灭菌自动手动，无机械密封无泄漏补料加酸加碱蠕动泵，设备美观大方。
Mechanical seal is the key part of submersible sewage pump, the reliability of it decide the submersible sewage pump life.
作为潜水污水泵关键部件的机械密封，其可靠性决定潜水污水泵的使用寿命。
Impurity pump mechanical seal after static test, the operation of high-speed rotation of the centrifugal force generated will inhibit the leakage of media.
杂质泵用机械密封经过静试后，运转时高速旋转发生的离心力，会克制介质的泄露。
Based on the analysis on all kinds of load while the pump valve is working, we establish the corresponding mechanical model.
对泵阀工作时的各种载荷进行了分析，建立了相应的力学模型。
Pump body seal part of the series for two sets of mechanical seals, mechanical seal, code-named the upper part 60b, the lower mechanical seal, code-named 60a.
泵体部分的轴封为两套串联的机械密封，上部机械密封代号为60b，下部机械密封代号为60a。
If fan blade assembly is replaced because of mechanical damage, water pump and viscous fan drive should also be inspecteThese components could have been damaged due to excessive vibration.
如果因为机械损坏而更换风扇叶片组合，应该检查水泵及粘性风扇驱动，这些组件可能由于过度抖动而损坏。
The mechanical seal for light hydrocarbon pump belong to the seal for liquid and gas phases.
轻烃泵机械密封属于汽液两相密封。
Your doctor may suggest a mechanical device to help your heart pump blood or prevent life-threatening irregular heart rhythms.
你的医生可能建议的机械设备，以帮助您的心脏泵血或防止危及生命的心律不齐。
Use of helical gear in gear pump is an effective measure, which can reduce the mechanical voice and flow pulse.
齿轮油泵采用斜齿轮是降低机械噪声和减小流量脉动的一种有效措施。
Frequent leakage of mechanical seal of quenching oil circulating pump was a hard problem in ethylene production.
急冷油循环泵的机械密封频繁泄漏是困扰乙烯生产的老难题。
This paper mainly introduces characteristics and classification, installation and use, as well as repair and maintenance of the power plants pump mechanical seal.
文章主要介绍了发电厂中泵类机械密封的特点与分类、安装与使用以及检修与维护等。
Recently, the CCR of Qilu Petrochemical refinery hydrocracking workshop successful switch to domestically produced high-speed secondary pump mechanical seals, modified to run in good condition.
近日，齐鲁石化炼油厂连续重整车间加氢裂化高速泵成功改用国产二级机械密封，改造后运行状况良好。
In petrochemical production, such methods as air compressing, pump circulation, mechanical blending and pipeline mixing are usually used in product mixing.
石油化工生产中常用的油品调合方法有压缩空气、泵循环、机械搅拌和管道调合。
Magnetic bearing has no mechanical contact between the rotor and stator, and a rotary pump with magnetic bearing has therefore no mechanical wear and thrombosis.
旋转血泵磁浮轴承的定子和转子之间没有机械接触，所以其内部不会发生机械磨损或产生血栓。
This article presents some methods of using and maintaining of engineering mechanical hydraulic pillar-plug pump, giving an example of straight axis-oblique tray pillar-plug pump.
本文以直轴斜盘式柱塞泵为例，介绍关于工程机械液压柱塞泵使用与维修的几种新的方法。
This article presents some methods of using and maintaining of engineering mechanical hydraulic pillar-plug pump, giving an example of straight axis-oblique tray pillar-plug pump.
本文以直轴斜盘式柱塞泵为例，介绍关于工程机械液压柱塞泵使用与维修的几种新的方法。
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