efficiency   (Sound)

The efficiency has 2 Senses.

• efficiency
• 能率, 効率
• the ratio of the output to the input of any system
• システムの中で出力ろ入力の比率

• efficiency
• 効率がいいこと
• skillfulness in avoiding wasted time and effort; "she did the work with great efficiency"
• 無駄な時間や努力を避けられる技能