27Local economists have appeared into their crystal balls and found one thing alternatively unpleasant.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》the sound point out of numerous straightforward substances, which have an everyday shape and surfaces arranged in comparable patterns景观水晶
The nonradiative transition premiums Keep to the method WNR = W (0) exp(-alphap), in which p is the number of phonons matching the energy gap. The nonradiative transition fees of Er3+ exhibit temperature dependence in line with the multiphonon leisure concept. In Tm3+ the temperature dependence of nonradiative peace prices is complicated through th