美国西部大文献检复系统
western reserve university retrieval system
WRU retrieval system
期刊论文[文献类型]
Journal article[publication type
外文文献
foreign literature
foreign language literature
外文文献资源
Foreign document resources
文献文摘检索
document abstract retrieval equipment
document analysis
标量大地电磁法
scalar magnetotelluric method
不活动大量储存卷
inactive mass storage volume
草原大文章
large composition on grassland