n.1.沉淀(物);沉渣。2.【地质学;地理学】沉积物。abyssal sediment: 深海沉积物accumulated sediment: 沉积泥砂active sediment: 活性沉积物additional sediment: 附加泥沙aeolian sediment: 风积物下载手机词典可随时随地查词查翻译