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据第九届国际选煤会议,一些国家提供的1980年煤炭产量、选煤厂的数量,入洗量、精煤产量(其中包括动力精煤产量)介绍如下:
According to the Ninth International Coal Preparation Conference, the coal production in 1980, the number of coal preparation plants, the amount of washable coal and the production of clean coal (including the production of dynamic clean coal) provided by some countries are as follows: