Zhōngyàocái xūyào jīngguò zhuānyè de jiāgōng chǔlǐ.
Traditional Chinese medicinal materials need professional processing.
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药材 usually refers to raw ingredients for traditional Chinese medicine (中药), such as dried herbs, roots, and minerals. China has a long history of cataloging 药材, most famously in the Compendium of Materia Medica (本草纲目).