名词
中文翻译：优质煤炭机车
同义词：
['fine-coal locomotive', 'fine-quality coal locomotive']
例句：
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1. Thenew fine coal locomotive is expected to significantly improve transportation efficiency.
新型优质煤炭机车预计将显著提高运输效率。
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2.The construction of the new railway line will require a fine coal locomotive to transport heavy materials.
新建铁路线的建设将需要一台优质煤炭机车来运输重材料。
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3. The fine coal locomotive was designed to operate at high speeds and low fuel consumption.
优质煤炭机车被设计成能在高速下运行且燃料消耗率低。