为改变而改变是愚蠢而徒劳无功的。
对程序进行修改是徒劳无功的。
盖茨是有理由认为乔布斯会劳而无功的。
今天我们所做之事有多少是琐碎无功的。
So much of what we do today is frivolous and futile and soon forgotten.
你这样做是徒劳无功的，有谁会在乎呢？
对于一些人来说，对幸福的争取甚至是徒劳无功的。
To some, even trying to achieve it is an exercise in futility.
一个诗人要想寻找他心里诗歌的母亲的话，是徒劳无功的。
In vain shall a poet seek the mother of the songs of his heart.
但你要做好心理准备，因为这通常是漫长而且徒劳无功的过程。
Be forewarned, however, that this can be a slow and often futile process.
根据前两次在斯瓦特的军事进攻推断，这次行动同样可能无功而返。
On the evidence of two previous offensives in Swat, this may achieve nothing good.
通常，对有技巧的经理的搜寻最终都是徒劳无功。
Often, the search for a skilful manager turns out to be a wild-golden-goose chase.
一般来说，他们已然尝试过所有经过验证的疗法，却徒劳无功。
环境的问题可能在于让人感觉徒劳无功、不健康或是太勾心斗角等等。
The environment can be stultifying, unhealthy, too political and so on.
他们想查出那陌生人的姓名，却徒劳无功。
无功与电压质量有着密切的联系。
小偷试图打开这扇锁着的门，但徒劳无功。
马刺最后时刻的反扑也告无功而返，被迫缴械投降。
The last time the Spurs have been nothing back, was forced to surrender.
本文重点讨论了初级电力市场中的无功定价问题。
The paper emphasize on the problem of reactive pricing in power market.
无功功率服务是电力市场辅助服务的一个重要组成部分。
Reactive power service is a significant part of electricity market ancillary service.
因此，电力系统无功电压管理工作也成为电网自动化调度的一个重要环节。
Therefore, the reactive power and voltage management is an important link in power auto-dispatching.
杰夫试着清理被打翻的酒，可是却徒劳无功。
Jeff tried to clean up the spilled wine, but his efforts were in vain.
目前排水泵站系统普遍存在功率因数低、无功损耗大的情况。
Now there is lower powe factor and larger reactive power loss in the drain system.
无功功率优化是减少电网损耗的有效措施。
The reactive power optimization is an effective measure for reducing the network loss.
第三步是配电网无功负荷的最优补偿。
无功功率补偿是电力系统中的一项重要工程。
The reactive power compensation is an important project in the power system.
采用过程计算机来执行无功调度是可行的。
The implementation of var dispatch FOR a process computer is feasible.
暴风雨使他们的努力徒劳无功。
暴风雨使他们的努力徒劳无功。
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