基本解释[医药科学]完好聚合物英汉例句双语例句When the polymer forms a condensed, well-defined layer closely surrounding the cell, it is called the capsule.当这些紧紧围绕细菌的的多聚体形成浓集,边界明显的一层时称为荚膜。basic.shsmu.edu.cnwell-defined polymer更多例句专业释义医药科学完好聚合物