A prime example is discodermalide, produced naturally by a marine sponge, but in very small quantities.
最突出的例子就是一种最近发现的天然聚酮化合物——discodermalide，它在海绵中提炼，但数量极少。
The characters including spicule morphology and elemental compositions, chemical constituents and bioactivity of the marine sponge were studied.
研究了海绵骨针形态、元素组成等特征，并对其天然产物进行了分离纯化、结构鉴定和活性检测。
This sponge mound has experienced the early submarine, Marine phreatic water, mixed water and meteoric freshwater environments.
该丘经历了早期海底、海水潜流带、混合水和大气淡水成岩环境。
This sponge mound has experienced the early submarine, Marine phreatic water, mixed water and meteoric freshwater environments.
该丘经历了早期海底、海水潜流带、混合水和大气淡水成岩环境。
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