介绍了一种简单实用、可用于直接计算和进一步优化研究的磨矿介质配比计算数学通式。
A general mathematical formula for calculating the size composition of grinding medium which is simple and practical and can be used in direct calculation and further optimization study is described.
通式(1)化合物是抗菌剂，可用于治疗各种细菌和原生动物感染。
The compounds of formula (1) are antibacterial agents that may be used to treat various bacterial and protozoa infections.
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