Exciton is electron - hole pair held together by their mutual Coulomb interaction.激子就是由电子和空穴在相互间的库仑力作用下,相互维持在一起的电子 -- 空穴对.As to the emission at 370 nm, It'should result from exciton recombination radiation.而在370nm处的...
Their music is a cross of reggae with hip hop.他们的音乐是雷鬼和嘻哈风格的组合.$ 4,500 for ratting on some hop - head actress and I never said a word!透露一个犯毒瘾的女演员能得到四千五百块可我一个字都没说!Finally, the above conclusions are generalized to the mult...
Firstly, they must make certain that their pension needs are adequately catered for.首先，他们得确保他们能获得足够的养老金。She went to the company to draw her pension.她去公司领退休金。The basic retirement pension will go up by £7.95 a week.基本退休金每周...
添加的甲基汞的回收率据报到达90%左右.The recovery of added methylmercury was reported to be approximately 90 %.通过相同的和添加的作用, 多基因可以对总的变异起重大的影响.Through similar and supplementary action, polygenes can have important effects on total variabil...