从1964年到20世纪70年代中期,在中国大地上掀起一个三线建设的高潮,即使在“文化大革命”那样动乱的情况下,三线建设也没有完全停下来,可见这个建设是十分重要和迫切的。 From 1964 to the mid-1970s, the climax of the construction of the third line in the land of China was such that construction of the third line did not stop completely even in the turmoil of the “Cultural Revolution.” This shows that this building is very important and Urgent.