负功：当作用力方向与力的作用点的瞬时速度的正方向夹角大于90°且小于或等于180°时，这时cosα<0，根据公式功为负。
负功 [fù gōng]
网络释义
短语
负功能 Negative function ; Dysfunction
负功率系数 negative power coefficient
反应性负功率系数 negative power coefficient of reactivity
负功训练 Negatives
负载功率 [电] load power ; bearing power ; Pload ; VA
有功负载 active load ; activeloadPLoad ; resistive component ; real load
功夫不负有心人 Hard work pays off ; Everything comes to him who waits ; Everything ; Hard work pays off translation
负载功率因数 load power factor ; power-factor of load ; effect-of-load power factor
负功函数 Negative work function
双语例句原声例句
-
所以摩擦力做负功-，转化成热能。
-
当我像这样做负功时，重力做正功。
When I do negative work, like I do now, gravity does positive work.
-
当我做正功的时候，重力做的是负功。
-
Delta v is positive in this direction here, the work is negative. So work on the system is positive. Work done by the system is negative.
功是负的，总而言之,外界对系统做功的符号为正。
-
This piston is being brought out, so we expect 0 the work to be negative, negative. And we start o V2 ut with zero volume. We end up with a volume p2 of V2, and the external pressure is constant to p2.
所以我们可以想象功是负的,开始的时候体积是,最终的容积是,外界的压力恒为。
-
And so, we can rewrite this as the work nRTln is equal to minus nRT log p1 over p2, nRTln or nRT log p2 over p1.
因此我们可以把这个式子改写一下,功等于负的，或者。
应用推荐
$firstVoiceSent
- 来自原声例句