grading curve

• 颗粒级配曲线,粒度曲线

grading curve的用法和样例：

例句

1. And the Hyperbolic tangent function curve is used to simulate the ediments wide grading curve of the mountainous river.
   针对山区河流泥沙级配宽的特点，利用双曲正切函数曲线来模拟山区河流泥沙的宽级配曲线。
2. And the Hyperbolic tangent function curve is used to simulate the ediments wide grading curve of the mountainous river.
   针对山区河流泥沙级配宽的特点，利用双曲正切函数曲线来模拟山区河流泥沙的宽级配曲线。