基本解释[环境科学技术]淡水底泥英汉例句双语例句The bioassay of freshwater sediment toxicity is described.描述了淡水沉积物毒性的生物测试方法。Minor element analysis demonstrates that is is freshwater sediment.据微量元素含量分析,此高岭石系淡水沉积物。freshwater sediment更多例句专业释义环境科学技术淡水底泥