求翻译：针对自然灾害，美国国家地震灾害减轻计划规定了四个减灾机构，分别是联邦应急事务管理总署、国家标准技术局、国家科学基金会和美国地理测量局。是什么意思？

Natural disasters, the U.S. national earthquake disaster mitigation plans to the provisions of the four mitigation agencies are the Federal Emergency Management Agency, the National Institute of Standards and Technology Bureau, the National Science Foundation and the U.S. Geological Survey.

With regard to natural disasters, the United States national earthquake disaster mitigation plan provides 4 institution for Natural Disaster Reduction, respectively, are the Federal Emergency Management Department, National Institute of Standards and Technology, National Science Foundation and the U

In view of the natural disaster, the American country earthquake disaster reduced the plan to stipulate four disaster reduction organizations, respectively were the federation emergency business management head office, National standards Technology Bureau, National Science Foundation and US Geograph

For natural disasters, United States national seismic hazard mitigation plan provides for four disaster reduction bodies, namely, the Federal Emergency Management Agency, national standards Technology Council, the National Science Foundation and the United States geographical survey.

正在翻译，请等待...