differential quotient的用法和樣例：
例句
- The secondary derivative differential pulse polarography was developed for the quantitative determination of chrysophanol in rheum.
建立了中草藥大黃中大黃酚的二階導數差示脈沖極譜定量分析方法。 - The calculation precision and speed were promoted by avoiding the numerical integral and differential calculation used in approximating the derivation.
避開(kāi)了數值積分運算和差分替代導數的近似，提高了計算精度和速度。
