the e polar bear 北极熊
The angles refer to the polar view angle, i. e. the angle measured from the vertical.
角涉及到极面观的角，例如垂直物上测量的角。
Experimental results point out that the said copolymer electret film is a polar material, i. e. there exist both oriented dipoles and deposited space charges in the film after charging.
实验结果说明，拉伸前后的这类共聚物薄膜均是极性材料，即充电极化后的材料内部同时存在取向偶极子和俘获空间电荷。
The channeling of the flow through the polar area only, i. e. only where it's needed to ensure steady, optimal.
通过对两极区域流动窜只，即只有在它的需要时，以确保稳定的最优的。
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