Vacuum packer can complete the whole process of pumping air into vacuum state sealing lettering cooling and exhaust in terms of the process but just need to press the vacuum cover .

产品说明：真空包装机只需按下真空盖即自动按程序完成 抽 真空、口、字、却、气的全过程。

According to the situation that the VFD Vacuum Exhaust Machine without vent-pipe relied on the import the paper proposed the control system design scheme of Vacuum Exhaust Machine . The key technology and specialties was discussed .

针对目前我国无排气管真空显示屏生产设备依赖进口的现状，提出了无排气管真空显示屏 真空 排气机控制系统的工作原理及设计方案，重点讨论了系统的关键技术及其特点。

The investigation of the vacuum exhaust process controlled by singlechip

单片机控制 真空 排气工艺的研究

Results of Study show that the vacuum and exhaust steam temperature are main factors influencing upon the dynamic elevation of LP cylinder and LP bearings of said unit .

研究结果表明， 真空 和 排汽温度是影响低压缸和低压轴承动态标高的主要因素。

A 12 working units vacuum exhaust system of clean vacuum switching tube

12位清洁开关管 真空 排气系统

In a vacuum exhaust system sealing steam to the turbine shaft labyrinth seals must be admitted to avoid loss of vacuum .

在 真空 排气系统中，必须引蒸汽到汽轮机主轴迷宫式密封，以防真空损失。

Vacuum condenser is applicable to condensing exhaust steam from steam turbine . Analyse the Torsional Vibration of the Interaction between Turbine Generator and Electric Power Network

真空冷凝器适用于从汽轮机发电机组、汽轮机货油泵及其它轮机 排出的蒸汽。机网作用下汽轮发电机组轴系扭振分析

The norm vacuum of condenser is usually obtained from the characteristic curve given by the manufactory . But the method is only fit for the condition of that both of the flux of cooling water and exhaust steam enthalpy of steam turbine are maintained at designed valves .

凝汽器 真空应达值通常是通过查取制造厂家提供的凝汽器特性曲线来得到，但这种方法只适用于冷却水流量、汽轮机 排汽焓均为设计值的工况。

The Cooling System Trouble of Water-Ring Vacuum Pump and It 's Effect on Turbine Exhaust Pressure and Power Output

电厂水环式 真空泵冷却系统的问题及其对机组 出力的影响

The vaporized steam can be pumped out through vacuum exhaust pipe when the damp raw material absorbed heat .

湿物料吸热后蒸发的水汽，通过 真空 泵经 真空 排气管被抽走。

Experimental Investigation on the Vacuum Generated by Cylinder Exhaust System

利用气缸 排气进行 真空发生的实验研究

In this paper the performance of the vacuum exhaust in VPI equipment the selection method of the vacuum unit and the vacuum sealing are introduced .

本文介绍了在电机制造行业使用的VPI设备中的 真空 排气特点、真空机组与真空密封选择方法。

This kind of camshaft makes EGR exhaust cam open the exhaust valve slightly when piston close to the bottom dead center in suction stroke and then the large vacuum degree will suck the exhaust gas in exhaust pipe into the cylinder in order to achieve internal EGR .

这种凸轮轴使得当发动机活塞接近吸气行程下止点时，EGR凸轮使排气门略微开启，利用缸内较大的 真空度将排气管中的 废气吸入气缸，从而实现内部EGR。

Vacuum valves are widely used in oil gas air-conditioning and exhaust gas recycling system of the automobile .

真空阀广泛应用于汽车的油路、气路、空调系统、 尾气回收等系统中。

The vacuum exhaust process controlled by singlechip can insure the consistency and the stability of the technique and make the process optimized and easy to operate .

应用单片机实现 电 真空器件的程控 真空 排气，以 真空 度为工艺进程判据，细化控制量，优化工艺，保证工艺的一致性和稳定性，提高了产品的质量；

Some Problems happened in the vacuum system during the commissioning have been described in the paper such as the exhaust hinder of vacuum pump air leakage of condenser and pump turbine block of inlet filter of vacuum pump and too high water level of condenser etc.

该文介绍了600MW汽轮机在试运时， 真空系统出现的真空泵 排气受阻、凝汽器进空气、小汽机轴封漏空气、真空泵入口滤网堵塞、凝汽器水位过高等问题。

Applied Study on Control System of VFD Vacuum Exhaust Machine Without Vent-Pipe

无排气管VFD 真空 排气机控制系统应用研究

Zkp-20 model 20-PORT vacuum exhaust apparatus for vacuum switch tube

ZKP-20型二十工位真空开关管 排气台

For improving heat supplying ability of condensing bleeder turbine we carried out low vacuum modification in turbines raised exhaust parameters and utilized vaporization latent heat of exhaust to heat circulating water of condenser to supply heat to user .

为提高抽汽凝汽式机组的供热能力，对汽轮机组进行低 真空改造，提高 排 汽参数，利用排汽的汽化潜热加热冷凝器冷却循环水，向热用户供热。

If the exhaust system is under a vacuum the casing must be warmed by gradually introducing the steam after opening the exhaust valve .

如果排气系统处于 真空下，必须在打开 排气阀后，逐渐引蒸汽来加热壳体。

A vacuum cooling system provided by the utility model can improve the operation efficiency of cooling and air exhaust processing equipment thereby lowering the cost .

本实用新型提供的 真空冷却系统，可以提高冷却 抽 气处理设备的运行效率，从而降低成本。

This paper introduces the design and the structure of a vacuum exhauster to exhaust the remaining anaesthetic gas in operating room .

本文介绍了手术室麻醉剩余气体 真空 排出 系统的构成及装置的具体设计。

Meanwhile the thesis points out that plasma enhanced liquid source MOCVD mainly consists of liquid delivery system vacuum system ultrasonic atomizer plasma enhanced system temperature control system automatic control system exhaust treatment components and so on .

等离子体增强液态源MOCVD主要由液体输运系统、 真空系统、超声雾化器、等离子体增强系统、温度控制系统、自动控制系统、 尾气处理组件等组成。