双光子是在中性兀介子衰变中产生的.Two photons are created in the decay of the neutral pion.π介子构成另一种三重态, 只是电荷不同,其它方面均相同.The pions form another triplet, electrically different but otherwise alike.介子具有超荷性.Mesons have the property of hyperch...
一群骨干右翼参议员曾企图左右自己的同僚。A hard-core group of right-wing senators had hoped to sway their colleagues.她的国会同僚是否同意，现在还无从知晓。It remains to be seen whether her parliamentary colleagues will agree.他感觉和同僚疏远了。He felt alienated from hi...