我们想询问一下关于贵公司销售的碳酸钾产品。
I would like to enquire about your Potassium Carbonate if possible.
橙汁，牛奶，番茄类产品和豆类也是钾元素的其他优质来源。
Orange juice, milk, tomato products, and beans are other good sources of dietary potassium.
随着农产品产量和品质的不断提高，作物对钾素的需要量也不断增加。
The requirement for K supply increases with the increasing of crop yield and quality.
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