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单词 phosphate rock
释义

phosphate rock


phosphate rock

n. Any of various rocks composed largely of phosphate minerals, especially apatite, used as fertilizer and as a source of phosphorous compounds.

phosphate rock


phosphate rock

[′fä‚sfāt ′räk] (materials) A rock that is naturally high enough in phosphorus to be used directly in fertilizer manufacturing. The beneficiated concentrate of a phosphate deposit.
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