Before polarization reversion, we reduced the conductivity of surface of KTP by Rb exchang method and the whole process of polarization reversion is monitored utilizing electro-optic effect. 我们利用铷交换法降低KTP晶体表面的电导率,对其进行极化反转,利用晶体的电光效应对KTP晶体极化反转过程进行实时监控。
Before the polarization angle adjustment, the antenna pointing may need to be adjusted in advance. 极化角调整前可能需要调整天线的对星指向。
At present, the social phenomenon " getting old before getting rich " and its result of polarization are increasingly prominent. 现阶段未富先老的社会问题及由此引发的两极化矛盾越来越凸显。
Before the emergence of internet media, study of group polarization was confined to sociology and social psychology, and was not introduced to the field of journalism and communication. 网络媒介出现前,群体极化现象还只是社会学及社会心理学的研究范畴,并未引入到新闻传播学领域。
A evaluation on corrosion resistent performance of copper tube before and after MBT filming treatment has been carried ont using 4 electro-chemical methods AC impedance, constant potential step, polarization curve and linear polarization. 用交流阻抗、恒电位阶跃、极化曲线、线性极化等四种电化学方法评价了MBT预膜处理前后凝汽器铜管的耐腐蚀性。