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钙质几丁膜
meaning in Chinese
chitin coating of calcareous layer
Related Words
钙质粘土
钙质层
钙质骨骼
钙质结核
钙质海绵
钙质骨料
钙质板
钙质片岩
钙质凝灰岩
钙质绿藻
钙质火成岩系
钙质集料
钙质碱性岩
钙质减少
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