empirical forest的意思|示意

The main method of estimate forecast of forest fire have empirical method, mathematics method, physics method, field experiment method and Laboratory method etc.

林火预测预报主要方法有：经验法、数学方法、物理方法、野外实验法和室内测定法等。

The research also do some empirical work take the natural forest protection project (NFPP) for instance.

研究以天然林资源保护工程为例，展开了实证分析。