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；
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。
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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