A large amount of fertile soil is eroded at the lower reach of the river every year.
河的下游每年都有大量的肥沃的土壤被侵蚀。
The rotors of a pump or a blower can reach high rotational speed, and the utility model is used for different use conditions, such as large pumping amount.
使泵或鼓风机等转子能达到高转速，大抽量及用于不同的使用条件下。
The rotors of a pump or a blower can reach high rotational speed, and the utility model is used for different use conditions, such as large pumping amount.
使泵或鼓风机等转子能达到高转速，大抽量及用于不同的使用条件下。
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