With the frequency resources becoming more and more nervous in recent years, millimeter-wave technology as a high-tech field develops rapidly.
近年来随着通信频谱资源的日益紧张，毫米波技术成为迅猛发展的高新领域。
The dose of high frequency electromagnetic wave is different for treating different cigarette and tobacco but the ranges of frequency, field intensity and treatment time used are the same.
处理不同的卷烟、烟草所用的高频电磁波的剂量是不一样的，但是使用的频率、场强和处理时间的范围是相同的。
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