统一的极性响应提供关键记录的自然离轴响应。
Uniform polar response provides natural off-axis response for critical recording.
当设计一个扬声器时，进行自由场测量以观察喇叭的指向性和障板形状对于极性响应的影响是非常重要的。
When designing a loudspeaker it is essential to perform free-space measurements to see the effects of driver directivity and baffle shape on the important polar response.
在相变温度范围，发现热释电响应随时间改变极性，表明晶体中两相共存。
At the phase transition temperature region, the pyroelectric response changes its polarity with time, indicating the two phases coexistence.
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