freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內容

20xx城鎮(zhèn)大面積農田土壤重金屬檢測與監(jiān)測的原理方法及應用展望(編輯修改稿)

2025-01-13 22:36 本頁面
 

【文章內容簡介】 ut that we can use the surficial or aerospace hyper spectral remote sensing to acquire the spectroscopic data of crops’ leaf or grain in order to invert the concentration of heavy metals, and we should bine the detection with monitoring to realize the widely and threedimensionally monitoring of soil heavy metal contamination, all which will provide technical support for the monitoring and restoration of soil heavy metal pollution in the future.  Key words:towns agricultural soil heavy metals;detection methods;hyper spe
點擊復制文檔內容
范文總結相關推薦
文庫吧 www.dybbs8.com
備案圖片鄂ICP備17016276號-1