冲沙
Wheel-speed regulating change box Whether in the first case or in the second the center of the convolute bedding is commonly marked by a sand "ball" and sometimes there is one or a few sluicing holes in the center.
轮变速箱,砂轮变速箱无论是前者、还是后者,中心多为砂核,有时中心有一个或多个泄水孔。
The sluicing chamber type water diversion hub is the "side water diversion, front sand sluicing" type that is well to prev.
冲沙槽式引水枢纽是一种常见的“侧面引水,正面排沙”引水枢纽型式,其引水防沙效果良好。
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