frequency zone meaning in English

频率带

Through the analysis attributes inof time and frequency zone , we can find when the thickness is less than / 4 the relationship between thickness and attribute is liner
通过常用的时频域分析，可以看出，属性与地层厚度在调谐厚度内时近似的呈线性关系。
The research results show that the frequency zone is very wide during deformation and fracture process of loaded coal , the main frequency zone is changed with load change ; at the initial stage of the load the main frequency zone of eme is low , and sometime it takes on the trend from raise to drop ; at the later stage of the load the main frequency zone of eme is high , and its trend is that the larger the load is , the higher the main frequency zone is
研究结果表明，在受载煤体变形破裂过程中电磁辐射的频带很宽，其主频段随载荷的变化而发生变化，在受载初期，电磁辐射的主频带较低，电磁辐射主频带有时呈现先增高而后降低的趋势；在受载后期，电磁辐射的主频带较高，基本上表现为载荷越大，电磁辐射的主频段越高。