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...
Seen here is the explanted heart. Pacemaker wires enter the right ventricle.请看这个移植心脏,起搏器金属丝深入到右心室.We investigated all explanted devices using sonication, a method for detection of microbial biofilms foreign bodies.我们目前来通...
I have to admit that I have bad handwriting.我不得不承认自己的字写得不好看。His handwriting, from earliest young manhood, was flowing and graceful.他的字从小就写得流畅优美。I've never come across hieroglyphics like the handwriting of Peter Smal...
鼓励电冶联营, 组建大型铝业集团,提高产业集中度.Encourage electro - metallurgical integration , set up large aluminum industrial groups and upgrade the degree of industrial concentration....