[20180618]RS22858_可再生能源研发资金历史：核能、化石能源、能效和电力系统研发资金的比较.pdf

Renewable Energy R&D Funding History: A Comparison with Funding for Nuclear Energy, Fossil Energy, Energy Efficiency, and Electric Systems R&D ,name redacted, Analyst in Energy Policy Updated June 18, 2018 Congressional Research Service 7-. www.crs.gov RS22858