abyssal clay造句

例句与造句

1. Calcareous plankton and sediment particles can be found in the water column above the CCD . If the sea bed is above the CCD, bottom sediments can consist of calcareous sediments called abyssal clay deposited on top of the carbonate layer.
2. It's difficult to find abyssal clay in a sentence. 用abyssal clay造句挺难的