Gardi 等[1]提出并试用了一种抽样估计效率很高的体视学新方法——均合法( proportionator) 。该法的合作者 Gundersen 最近在第13 届国际体视学大会( 北京,2011 年 10 月) 上对此进行了介绍与演示。笔者在此谈点对该法基本原理的初步理解,希望有利于该法的交流与推广。均合法的基本方法是: 观察均匀随机抽选的切片,摄取整个切片的图像,借助自动图像分析( auto- Gardi et al. [1] proposed and tested a new method of stereology with high sampling efficiency - proportionator. Gundersen, co-author of the law, recently introduced and demonstrated this at the 13th International Congress of Stereoscopic Optometry (Beijing, October 2011). I hereby talk about the preliminary understanding of the basic principles of the law, hoping to facilitate the exchange and promotion of the law. The basic method is legal: observe the uniform random selection of slices, take the entire slice of the image, with automatic image analysis (auto-