欧美老熟妇乱xxxxx,久久精品人人做人人爽电影蜜桃,重口浣肠AV系列熟女,黄瓜视频在线观看

 Since 2009, Jinhui Mining has developed technical cooperation with CUG (China University of Geosciences) and other well-known universities, it has invested nearly 1 billion to carry out deep risk prospecting within its own exploration rights, and discovered a large lead-zinc deposit and made a great breakthrough in lead-zinc prospecting in the last two decades. The two high-standard core libraries, with a construction area of more than 7,000 square meters, can store nearly 1 million meters of core, and they are the largest scale, the most complete quality and materials preserved in the industry at present. These libraries have been a provincial physical geological data core library and popular science education base.



202004231587629218879913.jpgⅠcore library of the physical geological data

     

202004231587629292755164.jpgⅡcore library of the physical geological data

       


The cores are the glasses and searchlights for underground treasure. The complete preservation of the prospecting core provides valuable basic data for further green exploration, mineralization factors, geological research and other technical experiments. The libraries are equipped with combined beam shelves to make the storage of core materials standardization and management information, and equipped with touch-screen quick query systems, which integrate the storage location of the cores, image data, lithological features and other information, making the query more convenient and fast. More importantly, the preservation of these cores not only has a strong guiding role for the further exploration of Guo jiagou lead-zinc, but also is valuable for geological experts to strengthen the study of Xicheng lead-zinc ore belt.



202004231587629771910939.jpgThe hall of the core data query

    

5、巖芯館_副本.jpg

All cores are stored in order and intact using beam shelves. 


巖心管1.jpg

The interior ofⅡcore library of the physical geological data

? 久久久久久成人国产精品| 1区二区在线观看| 欧美熟女伦乱| 久久久亚洲熟妇熟女电影| 六月丁香六月婷婷| 亚洲变态另类调教久久久| 色资源在线视频中文字幕| 国产精品污www一区二区三区| 久久人妻福利中文字幕日韩| 在线观看亚洲欧美一区二区| 丁香六月综合网| 新婚被h嗯啊巨肉高潮失禁h| 午夜性福利影院| 精品一区二区三区熟女少妇| 仙子娇羞呻吟无力雪乳| 日韩欧美午夜福利在线观看| 欧精久久久久久久久动漫| 掀开奶罩边躁狠狠躁视频0000| 亚洲精品亚洲人成在线| 国产精品综合日韩精品已满| 国产精品久久久久久久新郎| 欧美亚洲另 丝袜综合网| 欧美午夜精品久久久久久元件| 亚洲女同精品一区二区| 在线观看精品黄av片免费| 娇妻与公牛做爰h文| 日韩一片黄| 青草视频在线播放| 色妞www精品视频观看软件| 全部av―极品视觉盛宴| 欧美高清videosex| 日韩av高清无码| 韩漫画免费在线观看入口| 久久精品999国产亚洲| 日韩精品免费一区二区中文字幕| 日产精品美女久久久网站| 韩国下部无遮挡图片| 精品卡一卡二卡乱码高清| 性xxxxxxxxxxxx| 亚洲h动漫在线| 中文字幕无码久久东京热|