low-frequency propagation

基本解釋

Using half-empiric method, C-layer effect of very low frequency (VLF) propagation phase is analyzed and modeled, moreover, the function of VLF phase prediction is modified.
應(yīng)用半經(jīng)驗(yàn)方法對(duì)甚低頻（VLF）傳播相位的“C層效應(yīng)”進(jìn)行了分析和建模，改進(jìn)了VLF傳播相位預(yù)測(cè)函數(shù)。
In the context of NCEP/NCAR reanalysis and real precipitation daily data in 1998, propagation variational mechanisms of low-frequency rainfall (LFR) over China in 1998 are studied.
使用美國(guó)NCEP/NCAR再分析和中國(guó)實(shí)際降水的逐日資料，研究了1 998年夏季中國(guó)區(qū)域低頻降水傳播變化的機(jī)制。
Low-frequency sound propagation in the air, the air molecule vibration is small, the friction is slower, less energy consumption, so distant spread, transparent and full of vitality.
低頻聲音在空氣中傳播時(shí)，空氣分子振動(dòng)小，摩擦比較慢，能量消耗少，所以傳播比較遠(yuǎn)，通透力很強(qiáng)。