常见例句双语例句Humic acid was extracted from Swampy soil in Zhongdian on Yunnan.从中甸沼泽土中提取了腐殖酸样品，并对样品的性质进行了测定。Humic acid was extracted from swampy soil in Zhongdian at Yunnan and characterized.从云南中甸沼泽土中提取了腐殖酸样品 ，并对样品的性质进行了测定。 返回 swampy soil