在毛主席光辉哲学思想指导下,在军代表和“五·七”干校革委会领导下,我们在“九二○”生产中,大搞科学实验,经过多次反复试验摸索,终于试验成功用楝树皮作“九二○”一级种子培养基。事实证明毛主席关于“在生产斗争和科学实验范围内,人类总是不断发展的,自然界也总是不断发展的,永远不会停止在一个水平上”的科学论断,是千真万确的。 Under the leadership of Chairman Mao’s glorious philosophy and under the leadership of the military representatives and the “5.7” cadre revolutionary committee, we conducted a large number of scientific experiments in the “920” production trial. After many trial and error experiments, we finally succeeded in the trial Neem bark used as “920” a seed medium. Facts have proved that it is true that Chairman Mao’s scientific thesis that “mankind always develops continuously within the scope of the struggle for production and science experiments and that the development of nature always develops constantly and never stops at a certain level.”