华君武先生曾画过一个蜜蜂的蜂巢。上面有一群成双成对的蜜蜂，结伴欢快地自由飞翔。而那些没有伴侣的蜜蜂，却愁眉苦脸地困在下面，一副无可奈何的窘状。华先生画上的题目是：“双结生翅成超导，单行苦奔遇阻力”。这里所谓的“超导”，是指超导态中的奇怪现象：即两个电... Mr. Hua Junwu has painted a bee’s honeycomb. Above a group of bees in pairs, flying merrily together. And those bees without a partner, but distressed to sleep in the following, a helpless embarrassed shape. Mr. Hua painted on the subject is: “double knot wings into a superconducting, single-line Kui Ben encounter resistance.” Here the so-called “superconducting” refers to the strange phenomenon in the superconducting state: the two ...