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单词 nut coal
释义 nut coal
noun
Etymology: by shortening
1. : chestnut coal
2. : bituminous coal of medium size having varying top and bottom limits in different localities and ranging between top sizes of 1 1/2 to 2 inches and bottom sizes of 3/4 to 1 1/2 inches
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更新时间:2025/1/27 21:35:13