The force, as this weight drops is constant, mgh and so the work is just going to be m g h, h where this is h.
当重物掉落时候的力是恒定的，因此做功就是，这段长度是。
So, for example, down here I wrote that it was n 2 and that it was h 2, but when I re-wrote the molecules up here, you saw that it's an h h single bond where it's a nitrogen-nitrogen triple bond.
比如，在这下面我写的是氮分子2,而这个是氢分子，但我在上面把这些分子的形式改写了，大家可以看到,这是一个氢与氢之间的单键，含一个氮与氮之间的三键。
Problem 2B is asking you to find the point at which h equals 2200, x=0 partial h over partial x equals zero 0 and partial h over partial y is less than zero.
题2B要求找到一点，在这点处，h等于，且∂h/∂,以及∂h/∂y小于。
Results Compared with those in the control group, the H reflex scores in the TENS group were obviously decreased, while H reflex latency was prolonged and H/M was reduced.
TENS组H反射波潜伏期延长、H/M降低，和治疗前相比差异有统计学意义，对照组无明显变化；
The pattern of China-made H and H. H act on leukemia cellular DNA was observed by the agarose electrophoresis analysis.
本文用琼脂糖电泳观察国产三尖杉酯碱（H）及高三尖杉酯碱（H.H）与白血病细胞DNA的作用模式。
The pattern of China-made H and H. H act on leukemia cellular DNA was observed by the agarose electrophoresis analysis.
本文用琼脂糖电泳观察国产三尖杉酯碱（H）及高三尖杉酯碱（H.H）与白血病细胞DNA的作用模式。
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