English translation for "useless work"

虚功

Related Translations:

useless:  adj.1.没用的，无益的，无效的。2.〔俚语〕身体不舒服的，没精神的。短语和例子I am feeling useless. 我觉得精神不行了[不舒服]。adv.-ly ,-ness n.

useless reserves:  表外储量

useless resistance:  有害阻力

useless volume:  无效容积

render useless:  致使无用

useless land:  无用土地

useless nonterminal:  没用处的非终结符

utterly useless:  一点儿用处也没有

useless loop:  乌塞勒斯卢普尤塞莱斯卢普

useless token:  没用处的记号

Example Sentences:

1.

It depends on the length of delaying closing the valve plate to conduct the varying capacity and avoids some useless work , maintains the work ratio in a little range . in a word , it saves some energy 此调节系统根据延迟吸气阀关闭时间的长短确定排气量的大小，从而避免了压缩机作无用功，在压缩机气量变化的情况下，维持比功率(排气量与功率之比)几乎不变，从而节约了能耗。

Similar Words：

"useless rule" English translation, "useless species" English translation, "useless student" English translation, "useless token" English translation, "useless volume" English translation, "uselessly" English translation, "uselessness" English translation, "useli" English translation, "useljanin" English translation, "usell" English translation