单语范例（未经PONS编辑处理）
The soils, which are often thin, are generally acidic, well drained with a gritty, loamy texture and a humic surface horizon.
en.wikipedia.org In earlier times one dug a large hole in the vegetable garden, which then was partially filled up with humic mulch.
en.wikipedia.org In any case, the lagoon indeed grows slowly, owing to rainwater, acidic from the soil's humic acids, dissolving the lagoon's carbonate rock bottom.
en.wikipedia.org 互联网提供的例句（未经PONS编辑处理）
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www.uni-kiel.de Dating of sample and extracted humic acid
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Datierung der organischen Probe und der extrahierten Huminsäure
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www.sivash.at The Sivash ® healing clay has active substances, such as biological nature of bonds, amino acid and humic acid, which have a positive effect on the skin.
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Die SIVASH®-Heilerde besitzt aktive Substanzen, wie z.B. biologische Naturbindungen, Aminosäure und Huminsäure, die sich positiv auf die Haut auswirken.
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