以下为句子列表：
英文: Describes with examples the design principle for the large capacity brown coal boilers of Harbin Boilers Co., Ltd, the performance of these boilers and existing problems.
中文: 以实例简要阐述了哈尔滨锅炉厂大容量褐煤锅炉的设计原则、运行状况及存在的问题。
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英文: The maceral, proximate analysis, cleats and joint developmental characteristics of the brown coal in Bulianta coalmine, Dongsheng coalfield have been studied.
中文: 详细研究了东胜煤田补连塔矿煤的岩石组成、内生裂隙及外生节理的发育特征。
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