But we can determine what that constant is, because we know that if we sum over all the possible states, the molecule has to be in some state, right?
我们可以确定这个常数，因为我们知道，当我们把所有的态加起来之后，粒子必定处于某个状态，对吗？
The sum of the three is constant.
三者的总和是常量。
Theoretically the sum of the velocities of the three pistons on the discharge stroke in a low-fluctuation triplex pump should be a constant, and this can be achieved by means of the cam mechanism.
对于三缸低波动往复泵，理论上应使三个活塞在排出行程（吸入行程）中的速度之和为一常数，采用凸轮机构能达到这一目的。
Especially after 2000, the remaining sum growth of consumer credit of our country was a constant downward trend.
特别是2000年之后，我国消费信贷余额增长呈不断下降趋势。
The further numerical simulation results show that the larger the difference between the two input torques with constant sum, the larger the maximum shear stress of the cylinder.
数值计算结果表明，当输入不相同的阶跃转矩时，负载的最大剪应力水平将显著增加。
The further numerical simulation results show that the larger the difference between the two input torques with constant sum, the larger the maximum shear stress of the cylinder.
数值计算结果表明，当输入不相同的阶跃转矩时，负载的最大剪应力水平将显著增加。
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