open structure meaning in English

敞开结构
敞形结构
开扩结构
露明结构
疏松结构
透空式结构
未闭合构造

Rough and open structure for soft and adhesive sticky work piece to grind
软而且粘的工件加工时用粗松的组织
Fast multipole bem for the analysis of pressure vessel opening structures
压力容器开孔结构分析的快速多极边界元研究
Determination of the dry density of lightweight aggregate concrete with open structure
敞形结构轻集料混凝土的干密度测定
Structure : open structure
结构：开启式
Determination of flexural strength of lightweight aggregate concrete with open structure
开式结构轻集料混凝土挠曲强度的测定

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