记忆方法
双解例句
小知识
Radiation is energy transmitted in waves or a stream of particles. The first thing you think of as radiation is probably X-rays, but what cooks your food in the microwave oven is also radiation.
Radiation has some important medical uses, especially in the treatment of cancer, as “radiation therapy.” It’s also associated with such horrors as “radiation sickness” — observed in people exposed to high levels of radiation, as in the aftermath of the 1986 explosion at the Chernobyl nuclear reactor, in the Ukraine. You can also use the word radiation, in more benign contexts, to describe something spreading out from a central point, as the radiation of warmth from your fireplace.
实用短语
常用短语
单词用法
ultraviolet radiation 紫外线;紫外线照射
solar radiation 太阳辐射;日光照射
radiation therapy 放射治疗
词根词缀
词根: radi
表示”辐射,光线”
adj.
radiant 发光的, 辐射的, 容光焕发的radi辐射,光线+ant……的→adj.发光的, 辐射的, 容光焕发的
radioactive 放射性的,有放射能的radi辐射,光线+o状态+active积极的, 能起作用的→adj.放射性的,有放射能的
n.
radar 雷达, 电波探测器rad=radi辐射,光线+ar器→n.雷达, 电波探测器
radial 光线, 射线radi辐射,光线+al表名词→n.光线, 射线
radiation 发散, 发光, 发热, 辐射, 放射, 放射线, 放射物radiate[v.发光;放射,辐射;散布,传播]+ion表名词→n.发散, 发光, 发热, 辐射, 放射, 放射线, 放射物
radiator 散热器, 水箱, 冷却器, 电暖炉, 辐射体radiate[v.发光;放射,辐射;散布,传播]+or物器→radiator散热器, 水箱, 冷却器, 电暖炉, 辐射体
radio 收音机,无线电radi辐射,光线+o物→收音机,无线电
radioactivity 放射性,放射现象radi辐射,光线+o状态+activity活动→n.放射性,放射现象
radium [化]镭radi辐射,光线+um→镭是一种高度放射性的金属元素
radius 辐射光线radi辐射,光线+us→辐射光线
v.
radiate 发光;放射,辐射;散布,传播radi辐射,光线+ate表动词→v.发光;放射,辐射;散布,传播
radio 用无线电通讯radi辐射,光线+o物→收音机,无线电
同根词
词根:radial
adj.radial半径的;放射状的;光线的;光线状的
radiant辐射的;容光焕发的;光芒四射的
radiate辐射状的,有射线的
radioactive[核] 放射性的;有辐射的
radiating[物] 辐射的
adv.radially放射状地
n.radial射线,光线
radiator散热器;暖气片;辐射体
radiant光点;发光的物体
radiance辐射;光辉;发光;容光焕发
radiancy辐射,辐射率;光彩
v.radiating辐射(radiate的ing形式)
vi.radiate辐射;流露;发光;从中心向各方伸展
vt.radiate辐射;传播;流露;发射;广播