Economizer

[i'kɒnәmaizә]

解释:

(noun.) a frugal person who limits spending and avoids waste.

手打:凯勒--From WordNet

解释:

(n.) One who, or that which, economizes.

(n.) Specifically: (Steam Boilers) An arrangement of pipes for heating feed water by waste heat in the gases passing to the chimney.

艾达整理