broad spectrum英[brɔ:d ˈ慎启spektrə银大m]美[brɔd ˈspɛktrəm]广谱[例句]Sunscreen products that pass a new fda test will now say ' broad spectrum , ' followed by the product 's spf , to indicate its effectiveness for both types of rays.通过新的fda测试的防晒产品现在将在产品spf值后注明“广谱”，以表明其对两类紫外线均有效。您好，答题不易如有帮助请采宽搏如纳，谢谢
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