efficiency

US /ɪˈfɪʃ.ən.si/
UK /ɪˈfɪʃ.ən.si/
"efficiency" picture
1.

效率, 效能

the state or quality of being efficient

:
The new system improved the efficiency of the production line.
新系統提高了生產線的效率
We need to increase our energy efficiency.
我們需要提高能源效率