一九七五年十月,我扪七四级工农学员到国营六峰山林场进行开门办学,在场党支部的直接领导下,在工人、技术员、老师的指导下,一九七五年十一月五日,对一九五八年定植的166亩杉木成林进行双条杉天牛的为害调查. In October 1975, I mobilized workers and peasants from the 74th class to open their doors to the state-run Liufengshan Forest Farm. Under the direct leadership of the party branches present and under the guidance of workers, technicians and teachers, in November 1975 On the 5th, 166 mu of Chinese fir forest planted in 1958 was surveyed for its harmful effects.