1.  idle
2.  idle work

• 1. 无功: Reactive | MVar | idle | reactive power
• 2. 无功功率: reactive power | kVAR | wattless power | Mvar
• 3. 无功补偿: reactive power compensation | Reactive compensation | SVG | SVC

更多释义

• 1.我们辛辛苦苦跟踪他，却无功而返。
  Our efforts to trace him turned up nothing.
  dict.yoduao.com
• 2.他宣称自己无罪，却徒劳无功；他没有更好的回答就被解雇了。
  In vain he declared his innocence; he was dismissed with no better answer.
  dict.yoduao.com
• 3.和西西弗斯一样，巨石费力地向上滚动，结果又滚了下来，徒劳无功。
  As with Sisyphus, the boulder was painstakingly rolled upwards only to tumble back down again in an absurd exercise of futility.
  dict.yoduao.com

©2026 网易公司