Broad spectrum,求翻译~

帮忙翻译个词,High efficiency broad-spectrum. spectrum 求broad abroad braod abraod 的区别 翻译：A teacher should have broad experience with young people 翻译Oh, thats Broad band lines, I taint too technicle. autistic spectrum disorders是什么意思 怎么设置 spread spectrum infrared spectrum是什么意思 Spread Spectrum是什么意思? SPECTRUM是什么牌子 There are simply too many to list. but in a broad sense, 翻译一 time is too narrow,Refers to meet too broad翻译中文是什么意思