Pelagic sediment contains tiny grain of material.
远洋沉积物包含了微细物质颗粒。
Pelagic sediment contains tiny grain of material.
行星际物质中极小的颗粒。
A pelagic sediment containing at least 30 per cent skeletal remains of microorganisms.
一种含微体生物骨骼残余物至少30%的远洋沉积物。
A pelagic sediment containing at least 30 per cent skeletal remains of microorganisms.
一种含微体生物骨骼残余物至少30%的远洋沉积物。
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