Refers to the ratio of useful output to input, or the degree to which time, effort, or resources are well used. Common in business, technology, and everyday contexts.
この機械はエネルギー効率がとても高い。
This machine has very high energy efficiency.
We introduced a new tool to improve work efficiency.
We improved work efficiency with the new system.
This method is inefficient, so we should change it.
I want to use my time efficiently.
We improved the equipment to raise production efficiency.
thermal efficiency
network efficiency