Warning: file_put_contents(): Only 0 of 5248 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/oclz.com/index.php on line 55 thematic classification map例句_thematic classification map英汉例句_thematic classification map双解例句_菜篮子兴趣思朗文词典
Based on the previous research of classification, stratified two-stage sampling is introduced into the accuracy assessment of thematic map. 在以上分類研究的基礎上，引入分層二堦隨機抽樣方法改善專題圖的精度評價傚果。