
好词典

源自拉丁语 'sedimentum'(沉淀物) + 后缀 '-ation',17世纪进入英语。
❶ 沉积作用,指固体颗粒在液体或气体中因重力作用而逐渐沉降堆积的过程,常见于地质、环境科学等领域。
“The sedimentation of sand in the riverbed creates new landforms over time.”
(河床中沙子的沉积作用会随时间推移形成新的地貌。)
“Lakes often disappear due to sedimentation filling them with soil and debris.”
(湖泊常因沉积作用被泥土和碎屑填满而消失。)
sedimentation rate — 沉积速率,指单位时间内颗粒物质在液体中沉降的厚度或体积,用于地质和环境监测。
“The sedimentation rate of this lake is 2 cm per year.”
(该湖泊的年沉积速率为2厘米。)