自动: voluntarily; of one's own ac ...返: return油: oil; fat; grease作用: act on; affect原理: principle; tenet; axiom; the ...反作用原理: principle of reaction; reaction principle作用原理: action principle; functional scheme; mechanism催化作用原理: principles of catalysis action机构；机理，作用原理: mechanism局部作用原理: principle of local action; principle of objectivity媒质作用原理: principle of action through medium药物作用原理: principle of drug action质量作用原理: mass action principle最小作用原理: principle of least action分子间作用原理: principles of interactions of molecules激素作用原理,激素作用机制: mechanism of hormone最小作用量原理 最小作用原理: principleofleastaction自动返回: automatic return疏油作用: oleophobic effect脱焦油作用: detarring应用原理图: application schematic diagram自动返回机构: automatic return mechanism（活塞环）泵油作用: oil pumping自动返回, 自动回行: power return自动返回石英唱盘: auto-return quartz turntable
