bulk chemicals
大宗化学品(bulk chemicals)
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许多货主抱怨说：远距离运输大宗重货物，如煤、化学品、谷物，用货车成本太高，因此，铁路是解决他们抱怨的关键。
Many shippers complain that for heavy bulk commodities traveling long distances, such as coal, chemicals, and grain, trucking is too costly and the railroads therefore have them by the throat.
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