regional market structure 基本例句 结构特征 The wind field, radar echo and microphysics structure of the hailstorm are studied.分析了风暴各发展阶段的流场结构和回波结构特征及微观物理量的分布及其演变。 Palm line structure features are clear and stable, and they can uniquely describe a palmprint.掌纹的纹线结构特征明显,稳定且具有足够的辨别信息。