after polarization造句

• The dielectric loss of the plct ceramics after polarization increases firstly , and then decreases with increasing frequency
  极化后的plct ( x )陶瓷的介质损耗，随频率的增加先升高，然后降低。
• It was found that the dielectric constant decreases with increasing frequency , but increases with the contents of ca increasing . the dielectric constants of plct ceramics before polarizing are a bit smaller than that of plct ceramic after polarization with same composition
  发现plct ( x )陶瓷的介电常数随频率的增加而降低，随ca含量的增加而升高；同一组分的plct ( x )陶瓷在极化后的介电常数略小于在极化前的介电常数。