Terms for subject Hydroelectric power stations containing variable-value

English	Chinese
accompanying value of a variable action	可变作用的伴随值
combination value of a variable action	可变作用的组合值
frequent value of a variable action	可变作用的频遇值
mathematical expectation value of stochastic variable	随机变量的数学期望值
quasi-permanent value of a variable action	可变作用的准永久值