“包壳”的拼音为：bāo qiào...

粘土包壳作为石英晚期胶结作用的抑制剂可能是特别重要的.Clay coats can be particularly important as inhibitors of later quartz cementation.结果表明其由核心和叠层石包壳组成,具有核形石特有的结构和构造.The structure and texture found these nodules are characteristic of oncolite.回收...

“包壳”的英语可以翻译为：involucrum，cladding，jacketing，[核] jacket ...