《航空标准化》1977年第6期刊登了连成举、李凤兰同志的文章《用坐标法和图解法检定位移度误差》,对用图解法确定位移度误差的问题提出了一些不同的看法:“对未指定基准的情况,还有待进一步的讨论。因为按孔的实际位置‘找正’所建立的测量基准与孔组的理想位置是很难重合的,或者说,测量基准的选取不符合最小条件,所以往往测得偏大的误差值”。为了求得符合最小条件的误差值,文章提出了一个加旋转的图解法。观就以上问题谈 Aeronautical Standardization, No.6, 1977, published a series of articles entitled “Combinations, Comrade Li Fenglan’s article” Discrepancy in Displacement Error Detected by Coordinate and Graphical Methods “and put forward some different opinions on the problem of using the graphical method to determine the displacement error: The case of not specifying a datum is yet to be further discussed because it is hard to coincide with the exact datum set by ’finding’ for the hole at the exact location of the hole, or the selection of the measurement datum does not conform to the minimum Conditions, it is often measured too large error value. ” In order to find the error value that meets the minimum conditions, the article presents a graphic method of adding rotation. Talk about the above questions