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国家建委建委设计局于1976年1月6～至10日在北京召开了由华北勘学院研制的CH-50型工程地质钻机鉴定会议。参加会议的有国家建委、国家地质总局、以及冶金、机械、煤炭、石化、水电、铁道、交通、轻工、建工系统的有关勘察、科研、院校等32单位37名代表。会议听取了华北勘学院关于该钻机的设计试制情况、设计要点、使用说明、及其生产试验情况的报告,参观了钻机现场表演。会议代表一致认为该钻机达到了设计要求.适合我国具体情况和当前勘察工作需要,已具备了定型和小批量生产的条件。会议肯定了钻机定型的基本技术规格,并认为钻机具有冲击、迥转、震动三种性能,
The Design Bureau of the National Construction Committee Construction Committee held the CH-50 Engineering Geological Rig Identification Conference developed by the North China Exploration Institute in Beijing from January 6 to 10, 1976. The conference was attended by representatives of the National Construction Commission, the State Administration of Geology, and the 32 units of 32 units involved in metallurgy, machinery, coal, petrochemicals, hydropower, railways, transportation, light industry, and construction systems. The meeting heard a report on the trial design of the drilling rig, design points, instructions for use, and the status of its production trials, and visited the drilling rig live performance. Representatives of the conference unanimously agreed that the rig has reached the design requirements. It is suitable for the specific conditions of China and the needs of the current survey work. It has already established the conditions for stereotypes and small batch production. The meeting affirmed the basic technical specifications for drilling rigs, and considered that drilling rigs have three properties: impact, twisting, and vibration.