vacuum tightness是什么意思

网络释义

用法例句

The former dynamic seal was instead by gasket type seal at the end of flange,so the friction force caused by O-ring rubber seal was reduced,the capability of vacuum seal was im.

介绍了一种激光核聚变中冲击波观测镜真空密封结构的改进设计,并论述了O形圈的选取以及密封槽的设计方法。

A special structure was designed in order to meet the requirements of vacuum packaging process and to promote and keep high vacuum atmosphere inside the chamber.

介绍MEMS器件中常用的键合技术和适用于真空密封与器件性能要求的特殊结构设计,以及提高和保持器件高真空环境的方法。

electron gun vacuum lock

电子枪真空密封装置

Key Problems Analysis and Countermeasures of Vacuum Sealed Molding Casting Al-Si Alloy

铸造铝硅合金真空密封造型工艺难点分析

All the items for export must be under the tight seal which ensures that we always put the Total Quality Control into execution.

所有出口品种都必须真空密封，以保证全面控制质量这一措施的实行。

oil sealed rotary vacuum pump

油密封式旋转真空泵

Ultra-high vacuum flange--Copper seal gaskets

GB/T6071.3-1985超高真空法兰用铜密封垫

Sealed under low pressure or a partial vacuum.

抽空密封的在低压或部分真空状态下密封起来的

Development of feed through system of UHV motive sealing for reflectometer

反射率计超高真空动密封馈入系统的研制

Discussion of new sealing method of deep water-permeable stratum under super soft ground in vacuum pre-loading

真空预压超软弱土下卧透水层新密封方法探讨

A new type of vacuum preloading construction equipment for clay sealing wall and its application

新型真空预压粘土密封墙施工设备及其应用

An axial symmetrical model is set up for the sealing structure of the bulkhead plate for a columniform dewar.

建立了针对柱形真空杜瓦容器端盖密封结构的轴对称模型。

Discussion of surrounding sealing method of vacuum preloading under complicated work condition

复杂工况条件下真空预压周边密封施工方法探讨

Compressed Refrigerating Machinery to Be Fixed on Seal Water System for Vacuum Pump at the Steam Side in Power Plant

火电厂汽侧真空泵密封水系统加装压缩制冷装置

Gamma Sensitivities of Compton Detector with Relatively Permanent Vacuum Atmosphere

相对永久密封真空康普顿探测器伽马灵敏度研究

sealing regenerative-type air preheater

密封回热式空气预热器

a layer of trapped air that serves as insulation.

用于绝缘的密封空气层

X Series Rotary Vacuum Pumps is a basic equip-ment used for pumping air from sealedvessels to attain vacuum condition.

系列旋片式真空泵是用来对密封容器抽除气体而获得真空的基本设备。

"There are holes under the reed valve that connect to the engine carburetor. When the piston is moving up, a partial vacuum is produced in the sealed crankcase.

在片簧阀的下面有孔道与化油器相连。当活塞向上运行时,就会在密封的曲轴箱里产生部分真空。

Thanks to the development of new sealing technology, the regeneration type radiant tube nozzle can be used in the vacuum furnace to achieve uniform heating result.

新型密封技术的开发，使蓄热式辐射管烧嘴得以应用在真空炉上，并获得了均匀的加热效果。