helical calculus

• 螺旋演算

helical calculus的用法和样例：

例句

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。