unloading curve

例句：

1. 1. The unloading curve for this cargo ship is quite steep.
   这艘货船的卸载曲线相当陡峭。
2. 2. The engineer used a computer program to calculate the unloading curve.
   工程师使用计算机程序来计算卸载曲线。
3. 3.The unloading curve was used to optimize the loading and unloading process.
   卸载曲线被用来优化装载和卸载过程。