Research on Subsea Wellhead System with Analysis and Design of Pack off Assembly
水下井口头系统研究及其密封总成结构设计分析
The dynamically balanced rotor assembly,sealed bearings with grease reserviors.
动平衡的转子总成，具有蓄油装置的全密封轴承。
Pipe &hose assembly is convenient and double-quick when assembly.There are three seal grooves at tube end for reducing leakage rate of refrigerant .
管路总成装配方便、快捷，接头处三道密封槽，减少了制冷剂的泄漏。
One end of the cable is permanently connected to the enclosed mercury switch and the entire assembly is encapsulated to form a completely watertight and impact resistant unit.
电缆的一端永久性连接在封闭的水银开关内,这个完整的密封总装形成完全不透水、抗撞击装置。
Sealing convex platform: sealing convex platform is made of soft rubber, and used to seal each pin.
③ 密封凸台：密封凸台是用软橡胶制成的可密封每一根插针。
packer-crossover assembly
封隔器与转换工具总成
Summary on the remoulding of mechanical seals of pumps for conveyance of vinyl chloride monomer
氯乙烯单体输送泵机械密封改造总结
The primary and mating seal faces are lapped to a maximum of 3-helium light bands flatness to provide effective sealing and leakage protection.
主密封面和配套密封面叠加成最多3层的轻型带状平面,提高密封和防泄漏效果。
A CAD / CAE Integrated Design to Fuselage Main Frame
某承力密封框的CAD/CAE集成设计
sealed vessel where water is converted to steam.
把水变成蒸汽的密封的容器。
a small chamber in which packing is compressed around a shaft to form a seal.
通过轴压缩包装来形成密封的小室。
Gaskets and O rings are made of elastomers.
密封垫和O型环是由人造橡胶制成的。
Study on synthesis of acrylic acid emulsion for building paste sealant;
建筑密封膏用丙烯酸乳液的合成研究
The Density of Population and the Formation of Chinese Feudal Small-scale Peasant Economy;
人口密度与中国封建小农经济的生成
Study on Synthesis and Performance of One Component Polyurethane Sealant
单组分聚氨酯密封胶合成与性能研究
Synthesis of new water expandable waterproofing sealant and its application
新型水膨胀防水密封胶的合成与应用
pressurizing window
密封封口(电缆), 气密口
weatherstripping,thresholds & seals
密封条，门槛及密封胶