eps format, keyword: progress of the download progress…… Operation progress window material 操作 进展 窗口 操作进度窗口材料
outline doctor lineart microscope surgeon operation during Surgeon During Operation clip art 外科医生 期间 操作 操作过程中的外科医生剪贴画
computer diagram symbols chart data flow berteh constructs Berteh Flow Diagram Symbols clip art 流 关系图 符号 Berteh 流程图符号剪贴画