1.
Probe into Reconstruction of Rod Seal Device of Intake Gate Hydraulic Hoist in Ankang Hydropower Plant
安康水电厂快速闸门启闭机活塞杆密封改造
2.
Piston rings not sealing (oil being consumed by the engine).
活塞环没密封（引擎用油）。
3.
Examine the plunger joint ring of electric hydraulic draw stem and pneumatic draw stem in order to ensure the normal operation of transmission device.
定期检查电液推杆、气动推杆的活塞密封圈，以保证传动装置正常运行。
4.
Maintenance simplified by easily replaceable piston seal and steel reinforced renewable rubber disc.
更换活塞密封环和钢胶复合密封板简单方便。
5.
Reciprocating plunger seals have been substitute by mechanically or hydraulically actuated diaphragms in diaphragm pumps.
往复活塞密封被机械密封和液力隔膜泵所替代。
6.
Some pistons have seating rings of metal or leather.
有些活塞上有金属或皮革的密封环。
7.
Improvement of Actuator Piston Seal Assembly for Water Turbine Driven Generator
水轮发电机组接力器活塞密封的改进
8.
The Analysis of Brake Piston Seal Failure of B757-200 Aircraft
B757-200飞机刹车活塞密封失效分析
9.
"Thus, piston rings must be used to provide the necessary seal. The rings are installed in grooves in the piston. Actually, there are two types of rings, compression rings and oil-control rings."
所以活塞环就用来提供必要的密封。活塞环装在活塞的凹槽中。事实上有两种活塞环,气环和油环。
10.
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。
11.
Rings provide the needed seal between the piston and the cylinder walls.
环为活塞和气缸壁之间提供了必要的密封。
12.
split metal ring that seals the gap between a piston and the cylinder wall.
密封活塞和汽缸壁间隙的有裂缝的金属环。
13.
Theoretical Research on the Principles of Seal in Labyrinth Piston Compressors;
迷宫活塞式压缩机密封机理的理论研究
14.
It has two stem sealing: one is stuffing box and another is toroidal sealing ring( O-ring).
本阀阀杆密封分为两种形式：一为填料密封；一为O型密封环密封。
15.
"The cylinder of a steam engine is closed by plates at Both ends, with provision for the piston rod, which is rigidly attached to the piston, to pass through one of the end cover plates."
蒸汽机的汽缸两端都用盖封住,使得与活塞刚性连接的活塞杆穿过盖的一端。
16.
Thin, circular, steel bands fit into grooves around the piston to seal the bottom of the combustion chamber.
把薄的，圆形的，钢圈放进活塞周围的凹槽以密封燃烧室的底部。
17.
The dual encapsulated piston wear pads absorb the adverse side loading at start of each stroke.
双重密封活塞耐磨垫在每个冲程开始时能够吸收逆向负载。
18.
The top two rings are to keep the gases in the cylinder and are called compression rings.
最顶的两道保证活塞与气缸壁间密封的环叫做气环。