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从1991年6月召开的美国锅炉制造商协会(ABMA)第103届年会上获悉,美国的锅炉销售欠佳(包括国内市场和国外市场两方面)。
From the 103rd annual meeting of the American Boiler Manufacturers Association (ABMA) held in June 1991, it was learned that the US boiler sales were poor (both domestic and foreign markets).