活塞表面涂有石墨以减少摩擦。
绝不能使用苛性溶液或金属刷清除活塞表面的积碳和漆膜。因为这样会损坏活塞裙部的粗糙度。
Piston cleaning. Remove carbon and varnish from piston surfaces. Do not use a caustic cleaning solution or a wire Brush. These could damage the piston-skirt finish.
该文基于对MR阻尼器流变特性的力学分析，研制了一种活塞表面刻有螺旋凹槽的新型MR阻尼器。
Based on mechanical analysis on rheological characteristics of MR damper, a novel MR damper with helix slotted plunger is developed.
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