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单词
humic acid
释义
humic acid
[`hyü·mik `as·ǝd]
ORGANIC CHEMISTRY
Any of various complex organic acids obtained from humus; insoluble in acids and organic solvents.
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A selection
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asexual
asexual reproduction
as-fitted drawing
ash
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ash content
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ash fall
ash field
ash flow
ash furnace
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ashlar
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