正如在1.21中所指出的,在总能量中, 辐射能仅占很少的一部分.As indicated in 1.21, the radiation energy is a very small proportion of the total energy.这种表面不会反射辐射能, 因此呈现黑色.Such a surface would reflect no radiant energy, and hence would appear black i...
Euclid was trying to convey his idea of a geometrical point.欧几里得试图表达他的一个几何学观点。Some of these are mistakes made by Euclid that can be remedied.有些错误是欧几里德搞错的,可以纠正.Where Euclid unconsciously assumed the infinitude of straight...
And then , afterwards, we will tell Wally no more earplugs, okay?后来, 我们再告诉瓦利不要再戴耳塞, 好 吗 ?Wally: [ going home in a taxicab ] I treated myself to a taxi.沃利: ( 坐出租汽车回家 ) 我请自己坐出租车.Wally gripped my arm, partly to restrain me ...
天文学家们过去一直感到奇怪,为什么只有土星有光环.Astronomers used to ask why only Saturn has rings.他在耶稣基督头上画上光环.He put halos around the head of Jesus Christ.他头上烟雾缭绕,宛如一圈光环.Smoke wreathed his head like a halo....