为了纪念伟大领袖和导师毛主席一九七○年十二月十一日亲自批示“照发”《中共中央关于加强安全生产的通知》七周年,一些地区和部门纷纷举行纪念活动。天津市天津市主要区、局及所属公司和企业单位纷纷举行纪念活动,纪念毛主席批示“照发”《中共中央关于加强安全生产的通知》? In commemoration of the seventh anniversary of the great leader and teacher Chairman Mao personally instructing the “Notice on Strengthening the Workmanship” issued by the Central Committee of the Communist Party of China on December 11, 1970, some regions and departments held commemorative activities one after another. The major districts and bureaus of Tianjin, Tianjin, as well as their affiliated companies and business units, held commemorative activities in commemoration of Chairman Mao’s instructions of “taking the lead” and “the CPC Central Committee’s circular on strengthening safety in production”?