Reciprocating Positive Displacement pumps may use plungers with static seals pistons with dynamic seals or liquid diaphragms to achieve their pumping action.
往复式正排量泵可能使用带有固定密封的活塞；带有动密封的活塞；或隔膜来运行水泵。
Using magnetic fluid dynamics and thermodynamics theory, a study on the results of axial bearing pressure ability of rotation axis magnetic fluid static seals was introduced.
介绍了利用磁流体动力学、热力学理论，研究旋转轴磁流体静密封轴向承压能力的结果。
There are two types of seals. Static seal and dynamic seal.
密封垫的种类有两种。静密封和动密封。
The general prediction of leakage rate is presented. Influencing factors are analyzed. Countermeasures such as double seals, new structure of static seal, automatic control system are introduced.
推导空气预热器漏风的一般性计算公式，分析影响漏风的因素，提出了采用双密封技术，新结构静密封，安装漏风自动控制系统等降低漏风的对策。
Shaft seals from moving into a closed static sealed and completely avoid the media leak.
泵轴由动密封变成封闭式静密封，彻底避免了介质泄漏。
Mechanical seals are on the main shaft is installed in the dynamic ring in the pump shell and fixed up the static ring for relative movement between the face and achieve the purpose of sealing.
机械密封主要的是靠装在轴上的动环与固定在泵壳上的静环之间端面作相对运动而达到密封的目的。
The prior shaft head seals have the defects of easily broken, damaged and worn dynamic and static contact surface.
现有轴头密封动、静接触面易碎、易损，不耐磨。
Fluidic dynamic pressure seals, fluidic static pressure seals and hot fluidic dynamic pressure seals are described.
介绍了流体动压密封、流体静压密封和热流体动压密封。
Fluidic dynamic pressure seals, fluidic static pressure seals and hot fluidic dynamic pressure seals are described.
介绍了流体动压密封、流体静压密封和热流体动压密封。
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