sitting length scale

例句：

1. 1.This is a new measurement tool for measuring the sitting length of people.
   这是一种新型的测量工具，用于测量人的坐姿长度。
2. 2.The sitting length scale is used to measure the distance between two points on a person's body.
   坐姿长度标度是用来测量人体两点之间的距离。
3. 3. In this study, we used the sitting length scale to measure the height of people's legs.
   在这项研究中，我们使用坐姿长度标度来测量人们腿部的高度。