Also, debris from the damaged spillway  was piling up in the Feather River, raising its level and threatening to  flood out the power plant.

此外，受损溢洪道的碎片堆积在羽毛河中，导致水位上升， 有可能淹没发电厂。

Radial gates control how much water is released and massive  concrete blocks at the bottom of the chute, called dentates, disperse the flow to reduce erosion as  it crashes into the Feather River.

径向闸门控制释放的水量，滑槽底部的巨大混凝土块（称为齿状）可以分散水流，以减少水流流入羽毛河时的侵蚀。