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自1953年以来，我所大地测量组曾陆续地收到由北京本院人民来信组和本院南京办事处等单位转来要求审查的有关测量制图方面的文件，有近百件之多。这种送审的文件逐年在增加，尤以去年较多。这些文件的内容也很广泛，差不多接触到测量制图的各个方面，甚至是有关几何制图和普通物理学等。但最主要是有关测量仪器的改进和创制方面的，约占百分之八十，其中关于小平板仪的改进和新型自动地形测量仪器的设计创造，为数最多。
Since 1953, the Geodesy Group of our institute has successively received the documents on surveying and mapping requested by the People’s Letters Group of Beijing People’s Government and the Nanjing Office of the Court, which have nearly as many as one hundred pieces of documents. The number of such submitted documents has been increasing year by year, especially last year. The content of these documents is also very broad, almost all aspects of measurement mapping, and even about geometric mapping and general physics. However, the most important factor is the improvement and creation of measurement instruments, accounting for about 80%. Among them, the improvements on the microtiter instrument and the creation of new automatic topographic measuring instruments have been created in the largest number.