There are more than 600 Cenozoic volcanic cones and craters with abeut 50 000 km2of lava flows in northeast China, which formed many volcanic clusters and shown
Synthetical analyzing the deep geophysical data within Bohai bay basin the authors detect the deep crustal structure presenting high geothermal flux, thinned cr
摘要 宁夏南部山区水资源短缺的实际和耕地布局的分散是建设小型农田水利灌溉工程基础设施的基础。分析工程建设和管理过程中的不足,切实解决存在的问题,提升工程管理运行效率。 关键词 宁夏南部山区;小型农田水利工程;重要性;管理;措施 中图分类号:S27 文献标识码:B 文章编号:2095–3305(2020)08–0–02 Abstract The actual shortage of water
In order to explore the mineral resources buried in sea mud,it is necessary to use seabed resistivity measuring equipment,which works closer to the sediments th