Constant-flow pump
[化] 恒定流量泵; 恒流泵
?? 詞語組成解析
constant
['kɑnst?nt]
adj. 不斷的，持續(xù)的;永恒的，始終如一的;堅定;忠實的;
n. [數(shù)]常數(shù)，常量;不變的事物;永恒值;
con始終+stant站立→始終站著→不變的
flow
[fl?u]
vi. 流;垂;流出;（談話、文體等）流暢;
n. 流動;滔滔不絕;漲潮;連貫;
vt. 使泛濫;淹沒;排出;
pump
[p?mp]
n. 抽水機;打氣筒;泵;輕軟舞鞋;
v. 用泵輸送 ;涌出;急速搖晃;盤問;
??? 情景例句
If you have something you want to talk about,
假如你有什么事情要談，
The mill cannot grind with the water that is past.
覆水難收。
He told me not to bring you anything.
他吩咐我不要給你帶什么東西。