When a big storm occurs, the Space Weather Prediction Center releases a warning to the U. S. Department of Homeland Security, emergency managers and agencies responsible for protecting power grids.
一场强太阳风暴到达时，太空天气预测中心发送警告信息给美国国土安全局，应急指挥人员和保护电网的部门。
2
Rescorla, a 62-year-old retired and decorated U. s. Army colonel, had focused on security at the World Trade Center for years.
瑞思考勒，这位62岁退休的授勋陆军上校，多年前就开始关注世界贸易中心的安保问题。
3
He recently co-authored a study with the U. S. -based Woods Hole Research Center. The study identified strategies for ending deforestation in the Brazilian Amazon.