n.辐射；放射物；辐射状；分散 变形： 复数：radiations 双语释义：n.(名词)[U]辐射(能),放射 the radiating of heat, light, etc.; radioactivity[P]放射物 thing that is radiated英英释义： radiationn.energy that is radiated or transmitted in the form of rays or waves or particlesthe act of spreading ou