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郑仕善同志发表于“探工零讯”1965年第5期“КАМ-500型钻机自动平衡器”一文,对野外的钻探技术人员,正确合理使用自动平衡器启发很大。
Comrade Cheng Shih-shan was published in the “Section 3 of the Probe” 1965 issue “The КАМ-500 Drill Automatic Balancer”. It is instructive to the field drilling technicians to use the automatic balancer correctly and reasonably.