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N a small slender pointed structure or crystal, esp any of the calcareous or siliceous elements of the skeleton of sponges, corals, etc (海绵、珊瑚等的)骨针 (Also called spiculum)
The bony spicules are even, with occasional lacunae containing osteocytes.
骨板连续均一，偶尔可见包含骨细胞的腔隙。
The bony spicules are even, with occasional lacunae containing osteocytes.
骨板连续均一， 偶尔可见包含骨细胞的腔隙。
You are envisioning just one of thousands of young spicules on the active Sun.
你脑中想象的正是活跃的太阳上数千根新生的针状体之一。
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