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Noscapine has been primarily used as antitussive agent for several decades.
过去几十年中,那可丁一直被用作镇咳药.
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We regard them as actural stratigraphic units produced primarily by magmatic sedimentation.
我们把它们当作实际上的地层单元来考虑,它们主要由岩浆沉积作用所产生.
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