load-line diagram

例句：

1. 1.The engineer used a load-line diagram to calculate the weight of the equipment.
   工程师使用一个负载线图来计算设备的重量。
2. 2.The load-line diagram helped us understand the impact of different factors on the system performance.
   负载线图帮助我们理解不同因素对系统性能的影响。
3. 3.The load-line diagram shows the relationship between the input and output variables in the system.
   负载线图展示了系统中输入和输出变量之间的关系。