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讀过“地質與勘探”所連載的关于鑽粒鑽进刻取原理問題的討論以后,愿將自己不成熟的点滴見解提出,与大家共同商討。我認为,目前在討論中大体上有兩种不同的見解:一个是以楊春发工程师所主張的“以破碎鑽粒的刻取效率为最大”,另一个是以丘祖干同志所主張的“鑽粒鑽进刻取最大效能应为圆整鑽粒与破碎鑽粒的兩种不同形体的混合比”;对前者在論述中所作出的很多結論我認为都是很正确的,但对刻取原理的基本論点則不够全面;而后者所得出之結論实际上是不可能存在的。我認为,以破碎鑽粒刻取作用为最大的結
After reading the discussion on the principle of boring and drilling that was carried out by Geology and Exploration, I would like to discuss my own immature insight and discuss with you. In my opinion, there are basically two different opinions in the discussion at present: one is based on what Yang Chunfa, the engineer, advocated “maximizing the cutting efficiency of broken diamonds”; the other is based on the principle of “drilling grain Drilling into the maximum efficiency should be rounded and broken diamond particles of the two different forms of the mixture ratio ”; the former made a lot of conclusions in the discussion I think it is very correct, but the principle of engraving The basic argument is not comprehensive enough; and the conclusion drawn by the latter is virtually impossible to exist. In my opinion, the broken knot is the largest knot effect