knee bumper是什么意思

网络释义

1)knee bumper,膝缓冲器2)knee buffer,护膝缓冲器3)buffer rcgister,缓冲缓存器4)buffer,缓冲区;缓冲器5)snubber cylinder,缓冲器，缓冲汽缸6)snubber piston,缓冲器，缓冲活塞