At least two firefighters were shot and killed Sunday by unidentified suspects while responding to a wildfire near Coeur ...

（法新社洛杉矶29日电） 美国爱达荷州警方表示，今天发生消防人员执行灭火勤务期间遭埋伏枪手袭击事件，造成至少2人丧生。警方表示目前仍在与枪手对峙。 警察首长诺瑞斯（Robert ...

SAN FRANCISCO, June 30 (Xinhua) -- The suspect, believed to have shot dead two firefighters and injured another in a Sunday ambush attack in the U.S. state of Idaho, was found dead, local officials ...

Norris导数滤波(NDF)包含导数阶数、平滑点数和差分间隔三个可变参数，是多模式的算法群。功能各异的参数融合，可提升近红外光谱的柔性生命力，满足多样性光谱预处理的个性化需求。