词汇	metal flow
释义	metal flow 金属流动
随便看	private commerce private commercial establishments private commercial law Private communication private communication channel private communication facility private communication method private communication network private communication networks private communication protocol Private Communications Technology private communication technology private community health centers private community health organizations private community health service institutions private community health system private community heath service private companies Private companies sometimes have more leeway private company Private Company limited by shares private company share private company shares private comparison protoeol private compiling history