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日本国高知县林业考察团一行17人于1985年7月19日来安徽省国营沙河集林业总场松香厂考察松针粉生产情况,参观后进行
A delegation of 17 people from Japan’s Kochi County Forestry Investigation Delegation visited the Rosin Plant of the State-owned Shaheji Forestry Center in Anhui Province on July 19, 1985 to investigate the production of pine needle powder.