zero dispersion slope

例句：

1. 1.The zero dispersion slope is the steepest part of the curve.
   零分散率斜率是曲线最陡峭的部分。
2. 2.The zero dispersion slope is used to calculate the slope of a line.
   零分散率斜率用于计算一条线的斜率。
3. 3. The zero dispersion slope is important for understanding the shape of the curve.
   零分散率斜率对于理解曲线的形状非常重要。