- [电学] idle; idle work
- 无: not have; there is not; be w ...
- 功: exploit; merit; meritorious ...
- 无功表: varm varmeter
- 无功的: idle; reactive; wattless
- 无功伏: reactive volt
- 无功计: varmeter
- 无功量: reactive value
- 无功能: non-function
- 无功分量无功部分: reactive component
- 非无功伏安: non reactive volt amperes; non-reactive voltamperes
- 感性（无功）分量: inductive component
- 记忆无功能: memory no function
- 劳而无功: toil with no gain; a fruitless attempt; all one's efforts came to naught.; exert oneself to no purpose; labour lost; lost labour; make futile efforts; much cry and little wool; toil in vain; work hard but to no avail
- 落空；徒劳无功: draw a blank
- 闪断无功能: flash no function
- 师老无功: troops fighting for a long time without success
- 徒劳无功: prove futile; beat the air; be a wasted effort; burn daylight; carry coals to new castle; catch shadows; catch the wind in a net; come to naught; draw water in [with] a sieve; end in smoke; fish in the air; flog a dead horse; hold a candle to the sun; labor to no purpose; make a futile effort; make useless trouble; milk a hegoat; much ado about nothing; not to succeed after trying hard; paint the lily; plough [sow] the sands; plow the wave; use [exert] vain efforts; wasted effort; work in vain; work to no avail
- 无功报德: have no way of returning sb.'s gratitude
- 无功补偿: reactive compensation; reactive power compensation
- 无功补偿器: svc
- 无功不受禄: no gains without pains
- 无功部分: idle component; imaginary component; reaction component; reactive component; wattless component
- 无功部份: wattless component
- 无功成分: idle component
- 无功电动势: reactive electromotive force; reactive emf
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