两个时期是指1956～1964年和1966～1976年,这些时期中的一切业已成为过去的历史了。现在1980年,从党的十一届三中全会到刚刚闭幕的全国人民代表大会五届三次会议,我们处在全新的历史时期中。祖国的社会主义建设面貌正在迅速变化,建筑事业已经成了“四化”的先行。为了适应社会主义现代化建设的需要,我们殷切希望我们的建筑 The two periods refer to 1956-1964 and 1966-1976, and all of these periods have become past history. Now in 1980, from the Third Plenary Session of the 11th Party Central Committee to the 3rd Session of the Fifth National People’s Congress, which ended just now, we are in a new historical period. The appearance of the socialist construction in the motherland is rapidly changing, and the construction industry has become the forerunner of “four modernizations”. In order to meet the needs of socialist modernization, we earnestly hope our building