sediment
pronunciation
UK [ˈsedɪmənt]
US [ˈsedɪmənt]
-
- n.
- [地]沉淀物
- 沉积物，沉渣
Word Origin
sediment 沉淀物，沉积物
来自拉丁语 sedere,坐下，词源同 sit,seat.-ment,名词后缀。引申比喻义沉积物，沉淀物。
Example
- 1. The underground sediment of the ganges delta contains arsenic .
- 恒河三角洲地下沉积物中就含有这种毒物。
- 2. Sediment is deposited on a small and steep alluvial fan .
- 峡谷沉积物在小而陡的冲积扇上沉积了下来。
- 3. But contaminated sediment and marine organisms also seem to be involved .
- 然而似乎也牵涉到遭受污染的沉积物和海洋有机物。
- 4. With a half-life of 30 years , it accumulates in ocean sediment .
- 铯的半衰期为30年，且铯会积聚在海洋沉积物上。
- 5. Fishponds were abandoned , sediment filled reefs , and dynamite fishing was introduced .
- 鱼池被废弃，沉积物填充珊瑚，炸药捕鱼法被引进。