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在英明领袖华主席抓纲治国战略决策指引下,按照一机部、煤炭部“关于批准大型选煤设备设计任务书的通知”的要
Under the guidance of wise leader Leung Ching-hua, who guided the strategic decision of the state governing the country, according to a notice from the Ministry of Machinery and the Ministry of Coal Industry concerning approving the design task book for large-scale coal preparation equipment