词汇	head valve
释义	head valve 头阀;气门
随便看	management thought management thoughts management threshold management throngh costs management through accounting management through cost management through costs management through figures management through finance management through government-officers management through planning management through synchronization management through web service management time Management,Time management-types management types of forestry management type trait management tool management tools management to science research management to serve people Management,Total Quality management trade union management trail