... 中块电石 medium grade of calcium carbide 混中块 mixture middle lump 举中对齐块 center ...
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混中块煤 [矿物] mixed medium-sized coal
洗混中块 middle lump
混中块
Mixed medium block
以上为机器翻译结果，长、整句建议使用 人工翻译 。
针对煤炭市场混中块需求量小、价格低廉的行情，进行产品结构的探讨，以提高经济效益。
Directing to the situation of the mixture middle lump needs is not very much on market and its price is cheaper, make an approach to the product structure so as to lift economic benefit.
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