但这并不是问题的关键，保护系统只不过是在泵发生故障后的一种补救办法，是一种比较被动的办法。
This is not the crux of the issue, the protection system in the pump only after the failure of a remedy, is a relatively passive approach.
被动安全系统在事故是保护乘客，如一个胶皮安全气囊和安全带。主动安全系统帮助预防事故，如abs和TCS。
Passive safety system protects the passengers in case of an accident such as airbag and seat-belt tightener. Active safety systems help prevent accidents such as ABS and TCS.
磁流变液阻尼器能够有效地改善被动隔震系统的性能，可保护隔震系统因过大的水平变形而产生失效破坏。
Magnetorheological fluid damper can effectively improve the performance of passive isolation system and protect deformation of isolation layer against damage.
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