After the Kongdong reservoir water hole plate gate rebuild into a cone valve, the stilling basin, model test was conducted.
对崆峒水库输水洞平板闸门改建为锥形阀后的消力池进行了模型试验研究。
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The gatevalve usually is at the off-position, the water pump starts when the gatevalve opens slowly, when water pump engine off, the gatevalve shuts down slowly first.