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核形石
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核形石
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核形石
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核形石
由分泌黏液的藻类生长并捕获和黏结碎屑物质和碳酸钙质点,围绕核心加积而形成的颗粒。又称藻灰结核。
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natural tetrad
natural textile fibers
natural theology
natural tolerance
natural topology
natural transformation
natural trihedron
natural unit
natural unit system
natural uranium
natural uranium exists in the form of water
natural uranium (NU)
natural user interface
natural user interface, NUI
natural variability
natural vegetation
natural ventilation
natural ventilation of swine building
natural vibration
natural water
natural water cycle system
natural water quality
natural weighting
natural wetland
natural wetland microbes
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