测树器

例句：

1. 1. We used a tree gauge to measure the height of the trees.
   我们用一个树尺来测量树木的高度。
2. 2. The farmer used a tree gauge to mark the boundaries of his orchard.
   农民使用一个树尺来标记他的果园边界。
3. 3. The engineer used a tree gauge to ensure that the construction was done accurately.
   工程师使用一个树尺来确保建筑工作准确无误。