slope curve

例句：

1. 1. The slope curve of the mountain is quite steep.
   这座山的斜坡曲线相当陡峭。
2. 2. The engineer used a computer program to calculate the slope curve of the road.
   工程师使用计算机程序来计算道路的斜坡曲线。
3. 3. The slope curve of the road is changing as the traffic volume increases.
   随着交通流量的增加，道路的斜坡曲线正在发生变化。