mid-frequency band 中文意思是什麼

mid-frequency band 解釋
中頻帶
  • mid : adj. （superl. midmost ）1. 中央的，中部的，中間的〈常構成復合詞〉。2. 【語言學】央母音的，半開母音的。mid2, 'mid〈詩〉＝ amid.
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • band : n 1 帶，繩；帶形物；箍；箍條；嵌條；鑲邊；鋸條； 〈pl 〉 （法官等的）寬領帶。2 束縛，羈絆；義務；...
  1. But in the east, 30 ~ 60 - day low frequency propagates toward north and west and 10 ~ 20 - day low frequency spreads to south from mid - latitude as well as to east from 90 " e. 10 - 20 - day and 30 - 60 - day low frequent rain band centers, located in south china, upper - middle yangtze basins, northeast china, north china and the west part of china, are all important parts of asian summer monsoon rainfall

    東部地區， 30一60天振蕩有明顯的向北及向西傳播; 10一20天低頻降水隨位相從中緯度向南傳播，同時從90 ? e向東傳播。東部地區的10一20天和30一60天低頻雨帶中心都是東亞夏季風降水的重要組成部分，當地的夏季風降水受這兩種低頻振蕩調制。
  2. As for frequency domain, tirls includes mainly 3 frequency bands : ( 1 ) high frequency band with period less than 1 year, which is relative to weather ; ( 2 ) mid frequency band with predominant period 1 year, relative to sun, plant and season ; ( 3 ) low frequency band with period more than 1 year, relative to the crustal activity and long period variation of atmosphere temperature

    從頻率域看，地表熱紅外輻射主要存在3種頻段： （ l ）高頻，周期小於1年的天氣變化； （ 2 ）中頻，以1年周期為主的太陽、植被與季節變化； （ 3 ）低頻，大於1年周期的大氣變化的長周期成份，地殼緩慢的運動引起的熱輻射變化亦屬于長周期變化。
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