Key words: Key words:solid lubricant
collision theory hard sphere theory
hard sphere theory collision theory
lipoid-sieve theory lipoid-filter theory
TRIZ theory of inventive problem solving theory
TRIZ发明问题解决理论理论
TRIZ理论发明问题解决理论
adjusting bracket lock bolt
aid to navigation in lock area
air lock
空气闭锁
气闸
气塞
气障
气锁阀
阻隔室
气锁
气穴
锁风
气穴气塞冷藏船的管理间