The underlying cause for observations related to field monitoring was weak guidance, and collectively the number of observations in that one area had led to a sizable share of the total number of observations issued in the year.
与实地监测有关的意见的根本原因是指导无力，集体而言，在那一个领域的意见数目导致在该年发表的意见总数中占很大的份额。