Mechanical seal design is key to the damage of damping function due to the loss of working liquid of hydraulic shock absorber.
为了防止液压减振器因工作液的损失而丧失阻尼效能，其机械密封结构的设计是重要问题。
2
Damping factor alignment is a key and difficult problem to the signal processing in magnetic resonance spectroscopy.
衰减系数的校正是磁共振波谱信号处理和分析过程中的一个关键难题。
3
How to control the vibration isolation devices in three main directions of stiffness, damping, and other mechanical properties parameters is the key of the study.