无功

[wú gōng]

• idle work
• reactive power

参考释义

无功 [wú gōng]

• -
• 短语
  无功补偿 reactive compensation
  无功补偿设备 reactive-load compensation equipment
  无功部分 reaction component; reactive component; wattless component
  无功成组调节器 reactive power output group controller
  无功电动势 reactive electromotive force; reactive e.m.f.
  无功电度表 wattless component watt-hour meter; reactive kilovoltamperehour meter
  无功电压 reactive voltage
  无功电源容量 reactive generation capacity
  无功分量 idle component; imaginary component; reactive component
  无功峰值限制器 reactive-peak limiter
  无功伏特 reactive volt
  无功负荷 reactive load
  无功近场区 reactive near-field region
  无功面积 lost area
  无功能量 quadergy
  无功线路 reactive line

例句

1. 我干了整整一个周末才完成任务，但我连一句感谢的话也没得到，真是徒劳无功。
   I worked all weekend to finish the job and didn't get so much as a word of thanks; I was a fool for my pains.
2. 医生们曾竭尽全力抢救他的生命，但却徒劳无功。
   The doctors tried everything to keep him alive but to no avail.

近反义词

【反义词】

• 有功