简介：落叶小乔木或灌木,高3～5m,有时高达10m以上。枝条纤细,少刺或无刺,密被褐色鳞片状鳞毛或散生淡白色星状鳞毛,老枝灰棕色。叶披针形,长（30）45～80（90）mm,宽6～10mm,边缘通常反卷,上面散生白色星状短柔毛,下面密被星状鳞毛和少量毛部发达的鳞片状鳞毛,外观呈现毡绒状;叶柄长约2mm。

简介：Themodernizationandinformatizationmanagementofancientandfamoustrees’managementisanimportantstandardwithwhichthemunicipalpublicresourcemanagementlevelofaregionorcitycanbemeasured.Designanddevelopmentofancientandfamoustrees’three-dimensionalmanagementinformationsystemwasrealizedbasedonvirtualplantbyusingintegratedtechniquesofvirtualplantsandGeographicInformationSystem.Thesystemarchitecturedesignwasdevelopedonthebasisoffunctionalrequirements,andthepracticalsystemwasachievedinVisualStudio2008developmenttoolsandOpenGLgraphicsstandards.Thesystemhasfunctionofancienttreesarchivesmanagement,three-dimensionalreconstructionofthetreessurroundingenvironment,individualtreeinformationinquiryinthree-dimensionalscene,etc.Applicationanddisseminationofthissystemwillgreatlypromotethemanagementandprotectionofancientandfamoustreesstandardization,informalizationandvisualization

简介：5月18日，“时风集团院士工作站揭牌暨时风新型D101电动汽车批量生产高峰论坛”在时风农用汽车产业园大礼堂举行。中国工程院郭孔辉院士、中国科学院何祚庥院士、中国电工技术学会名誉理事长周鹤良、农业部农机推广总站站长刘宪和农业部农机试验鉴定总站副站长杨林等领导和来自全国各地的经销商、供配商、新闻记者近900人参加了论坛。