The lifting elevator carrying capacity, suitable for two people (can carry some weight tools and materials) at the same time climbing;

该升降货梯承载能力强，适合于两人（可携带一定的重量工具和材料）同时登高作业；

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The wider the sand graduation and the bigger the weight ratio of the fine sands, the bigger the sand carrying capacity of flow in the same hydraulic dynamic condition.

级配越宽，细颗粒泥沙所占的比重越大，则在同等水力条件下水流挟沙力越大。

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