在毛主席关于学习无产阶级专政理论的重要指示指引下,我们以阶级斗争为纲,坚持科研为工农兵服务的大方向,发扬自力更生,艰苦奋斗的精神,根据国家计委《关于加强防止矽尘和有毒物质危害工作的通知》的要求,在国家劳动总局和商业部的大力支持下,最近和北京市劳动保护用品商店、北 Guided by Chairman Mao’s important directives on learning the theory of the dictatorship of the proletariat, we take the class struggle as the key link and insist on the general direction in which scientific research serves the workers, peasants and soldiers. We should carry forward the spirit of self-reliance and hard work, And toxic substances hazardous work notice, "the request, with the strong support of the State Administration of labor and the Ministry of Commerce, and recently Beijing labor protection supplies store, North