At the phase transition temperature region, the pyroelectric response changes its polarity with time, indicating the two phases coexistence.
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。
The major reason for the coexistence of many types of age structure is ascribed to the differences in natural disturbance regime in each region.
不同地段自然干扰状况的差异是造成多种年龄结构类型共存的主要原因。
It can provide higher spectrum efficiency by coexistence of primary and CR users at the same region, time, and spectrum band.
它可以提供在同一区域，时间和频段高出小学和CR用户共存的频谱效率。
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