airtightness是什么意思

网络释义

用法例句

This threaded casing, named SEAL-LOCK HT casing, has the following characteristics: (l)good gas sealing ability by applying special sealing structure at end faces and side face; (2)adopting barb thread design to improve the tensile- and compression-strength and to prevent unscrewing of the casing; (3)advanced thread structure ensuring easy casin.

这种螺纹套管的结构特点是 :①端面和侧面为特殊结构密封 ,套管的气密(封)性能好 ;②采用倒钩螺纹设计 ,提高了螺纹的抗拉和抗内外压能力 ,可防止套管倒扣松动 ;③螺纹结构先进 ,套管插入方便 ,入扣不易错扣 ;④抗过扭矩能力强 ,螺纹联接可靠。

Study of low temperature eutectic bonding process for MEMS hermetic package;

MEMS器件气密性封装的低温共晶键合工艺研究

Design of MEMS Chip-Scale Atomic Clock and Hermetic Packaging of Cs/Rb Vapor;

MEMS原子钟理论、设计及Cs/Rb气体盒气密性封装研究

Study on the Dynamic Auxiliary Seal Ring of Dry Gas Seal;

干气密封装置动态辅助密封圈性能研究

the seal of the air-balancing cylinder adopts multi-stage seal;

气平衡缸密封部位采用多级密封装置 ;

Research on Assembly Reliability and Sealing Properties of the Bearing Sealed Ring;

轴承密封件安装稳定性与密封特性研究

Research on the Mechanical Seal CAT Device and the Performance of the GY70 Mechanical Seal;

机械密封CAT装置及GY70机械密封性能的研究

It is equipped with piston rings to provide a good seal between the cylinder wall and piston.

上面装有活塞环,从而使活塞和气缸壁之间具有良好的密封性。

Development of Universal Efficient External Tightness Detection Equipment on Domestic Diaphragm Gas Meter

通用型高效家用膜式燃气表外部密封性检测装置的研制

Kiln head seal person who adopts clamshell seal, kiln tail equips with the contact-type sealinstallation of the axial, have guaranteed sealed dependability.

窑头密封采用了壳罩式密封，窑尾装有轴向接触式密封装置，保证了密封的可靠性。

Installation of TISC 165,000 m~3 Oil Sealed Dry Gas Holder

天钢165000m~3稀油密封式煤气柜的安装

pressurizing window

密封封口(电缆), 气密口

The Application of Dry Gas Seal in Air Compressor of the Catalytic Installation;

干气密封在催化装置气压机组上的应用

Research and application of dry gas seal of cracking gas compressor of Ethylene Plant

乙烯装置裂解气压缩机干气密封的研究与应用

Seal and Anchor Performance Test Installment Research of Packer

封隔器的密封与锚定性能测试装置研究

Effect of Hydrogen on the Reliability of Microelectronic Devices

氢对金属封装密封元器件可靠性的影响

Test method for leaks in sealed flexible packages

GB/T15171-1994软包装件密封性能试验方法

testing methods for sealed flexible packages

软包装件密封性能试验方法

High-density IC Packaging Based on Flexible Printed Circuit

基于挠性基板的高密度IC封装技术

The Valve is capable of zero leakage, low torque operation as well as long life.

气密性好，密封性能可靠，操作轻便，寿命提高。