Open AccessClenching the Opening Opportunity, Improving the Use Efficiency of Large-Scale Instruments
Author(s) -
余贺
Publication year - 2017
Publication title -
xian dia guan li/xian dai guan li
Language(s) - English
Resource type - Journals
eISSN - 2160-7311
pISSN - 2160-732X
DOI - 10.12677/mm.2017.74024
Subject(s) - scale (ratio) , environmental science , business , geography , cartography