徐小荷、王家琛同志: 您們对於曾廣种同志在本刊第13期上所做的技術解答(關於炮眼數目計算及靱度測量問題)提出了非常宝貴的意見,您們这种探討真理、研究科学的態度,是值得我們学習的。关於岩石統一分類,並在此分類的基礎上訂出矿山工作定额,这是今後我們鑛山工作者迫切的任務。有了正確的定额,才能更好地衡量勞動生產率的增長情况,和更好地改進矿山工作。 Xu Xiao-heng and Wang Jia-chen: You have put forward very valuable opinions on the technical solutions that Comrades Zeng Guangchang has done in the thirteenth issue of this issue (on the calculation of the number of blast holes and the degree measurement), and your discussions Truth, the attitude of scientific research, it is worth learning. On the rock classification, and on the basis of this classification to set the mine work quota, which is the urgent task of our mine workers in the future. With the right quotas, we can better measure the growth of labor productivity and better mine work.