roduction in the early 60s. However, the main exports were still agricultural production and mineral resources.3. The stagnation period in the 70s The 70s were the period that China and USSR kept opposing each other, so the trade between the two countries remained in a low level. However, their trade relation revealed a tendency of slow increasement because of the necessity compared with that of the late 60s. The Sino-USSR trade amount of 1971 was 149 million dollars which was the 3.17 times of that of 1970.It increased another 50% in 1972 .The amount kept rising at a low speed after that. Still the Sino-USSR trade remained low and didnt recover to the level of the late 50s .The proportion of Sino-USSR trade to Chinese foreign trade was only 1.3%. The proportion of Sino-USSR trade to USSRs foreign trade was even less, only 0.2%, which was the thirty-third in USSRs trade partners.The Sino-USSR Trade Amount in the 70s(unit: ten thousand dollars)YearTotal trade amountExportImportProportion to theChinese foreign trade (%)197119721973197419751976197719781979198014 927 25 033 26 177 29 999 29 725 41 47332 904 4 3 653 49 262 49 2428 09313 35013 34315 49515 13016 83817 64522 96624 22322 8306 83411 68312 83414 50414 59524 63515 25920 67825 03926 4123.08 3.97 2.39 2.06 2.01 3.09 2.22 2.12 1.68 1.30Original resources: Chinese Foreign Economics and Trade Annual The Sino-USSR goods structure in the 70s was this: USSR exported machines, transportation and steel. USSR also exported wood to China since 1972. China exported industrial consumer good, food and its ingredients, mineral resources and metals, etc to China.4. Rapid development in the 80s The Sino-USSR relation has moderated since 1980. In May 1989, the USSR president Gorbachev visited China, which normalized the relationship between the two countries. The both governments took an active attitude towards trade, which cause a rapid development. In the 80s, Sino-USSR...