Errors in forest measuration with Angle gauge are analyzed in this paper based on the data from 414 plots of larch plantation.

本文利用414块人工落叶松林样地实测资料，探讨了角规测树的误差问题。

youdao

Focusing on overcome the shortcomings of routine angle gauge using in forest measuration, a new-type angle gauge with the function of correct slope automatically was developed.

针对普通测树角规在森林调查中存在的弊端 ，研究发明了一种能自动改正坡度的新型角规 ，详细介绍了其原理、结构设计及使用方法。

youdao