20世纪70年代初，苏联开始在价格调整上给予企业和工业一些与资本主义制度一致的灵活性，这是一种更为非正式的演变。

In the early 1970's, the Soviet Union began to give firms and industries some of the flexibility in adjusting prices that a more informal evolution has accorded the capitalist system.

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这让我回忆起20世纪70年代末和80年代初的一些情况。那时候，中国各地之间、城市之间的很多商品价格并不一致，所以出现了“倒爷”，这些人被批评为“二道贩子”，搞长途贩运，搞投机倒把，赚取差价。

This reminds me of China in the late 1970s and early 1980s, when prices differed in different cities, thus inducing profiteers, who transported goods over a long distance for speculative profits.

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对初馏塔的模拟除初顶油质量存在很小的误差外，流量和温度等关键指标与实际是一致的；

Simulation results of primary tower were in accord with plant data except slight deviation of gasoline quality.

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