由于受水位限制，景洪水电站在常年洪水时，水库必须在低水位运行。
Because of water level limitation, the Jinghong reservoir has to be operated at a low level during a perennial flood period.
抵御洪水需要水库保持低水位运行，以容纳洪水的流入，而水库只有保持高水位才能满足发电的需要。
Flood control requires the reservoir maintain low levels of water to allow for the inflow of flood waters, while power generation requires high levels of water in the reservoir.
SG在瞬态、启动和低功率运行工况下的“收缩”与“膨胀”现象引起的逆动力学效应使SG的水位控制变得复杂。
The inverse dynamics effects, which are caused by shrink and swell under transient, startup and lower power operation, make the water level difficult to control.
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