[20130731]R43070_肥料管理：硝酸铵和无水氨.pdf

CRS Report for CongressPrepared for Members and Committees of Congress Regulation of Fertilizers: Ammonium Nitrate and Anhydrous Ammonia (name redacted) Specialist in Science and Technology Policy (name redacted) Specialist in Environmental Policy (name redacted) Analyst in Disability Policy July 31, 2013 Congressional Research Service 7-. www.crs.gov R43070