常見例句雙語(yǔ)例句The bioassay of freshwater sediment toxicity is described.描述了淡水沉積物毒性的生物測(cè)試方法。Minor element analysis demonstrates that is is freshwater sediment.據(jù)微量元素含量分析，此高嶺石系淡水沉積物。 返回 freshwater sediment