3.The tribophysics of the cylinder liner—piston rings in an internal combustion engine is a typical tribological system with the reciprocating motion and the impacting motion.
内燃机缸套——活塞环摩擦副系统是一个集、冲击于一体的典型的摩擦学系统。
4.Sino-American products: hermitic and semi-hermitic reciprocating multi-compressors water chillers, vertical hermitic screw water chillers;