...同能态下的本征函数 (sum-over-states) 便可以描述分子在电场干扰下所产生之偶极矩 (dipole moment)和跃迁矩(transition moment),也就可以得到极化率、 一阶及二阶非线性光学活性。
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transition dipole moment 跃迁偶极矩
emission transition moment 发射跃迁距
dipole transition moment 偶极跃迁矩
magnetic transition moment 磁跃迁距
electronic transition moment 电子跃迁矩
electronic dipole transition moment 电偶极跃迁距
When he is walking from aisle to aisle he takes a moment to transition from hunting to hiking.
当他从一个过道走到另外一个过道的时候他总是花点时间从打猎过渡到登山。
You are at a moment of transition that requires making choices.
你们正处在一个转变的时刻,需要做出抉择。
At this moment, as we enjoy the peace and comfort of the "Golden Week" holiday, remembering the value and meaning of being "Chinese" is especially important to this country of ours in transition.
此刻,分享“黄金周”带来的安逸和舒适之时,重温作为“中国人”的价值和意义,对我们这个转型中的国家尤为重要。
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