approach section length

例句：

1. 1. The engineer calculated the distance between two points on the line to determine the approach section length.
   工程师计算了两点之间的距离，以确定接近部分的长度。
2. 2.The car's engine is designed to have a specific approach section length for efficient fuel consumption.
   汽车的发动机设计有特定的接近部分长度，以实现高效的燃油消耗。
3. 3.The research team has developed a new method to measure the approach section length of a structure.
   研究团队开发了一种新方法来测量结构接近部分的长度。