helical calculus

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  • 螺旋演算
    1. Also, first-order predicate calculus isn't good enough anyway.
      同时,从各方面来说,一阶谓词演算都不是足够好。
    2. Chemistry also uses calculus in determining reaction rates and radioactive decay.
      化学也使用演算在确定反应速率和放射性衰变。