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...
我看见那又小又丑的犹太房东在他的房子里大发雷霆.I saw the ugly little landlord vociferating in his rooms.她走出了浴室,动作果断但是笨拙, 她本想大踏步走去, 却被那又长又丑的裙子给绊住了.Decisively , but awkwardly, she left the bathroom, her stride hampered by the long ugly skirt.他是个...
Robyn had the more mobile, more expressive face.罗宾有一张更加善变、表情更加丰富的脸。He blushed furiously and Robyn knew she had hit the mark.他气得满脸通红,罗宾知道自己达到了目的。Robyn's loss of memory is a psychological problem, rather than a physic...
Sandra Day O'Connor, former Supreme Court Justice, majored in economics at Stanford.前最高法院法官 SandraDayO 'Connor在斯坦福学经济学专业.Or, what Stanford University psychologist Claude M. Steele, who is black, refers to as�...