金屬顯象管 的英文怎麼說

中文拼音 [jīnzhǔxiǎnxiàngguǎn]
金屬顯象管 英文
metal kinescope
  • : Ⅰ名詞1 (金屬) metals 2 (錢) money 3 (古時金屬制的打擊樂器) ancient metal percussion instrum...
  • : 屬名詞1 (類別) category 2 [生物學] (生物分類系統上所用的等級之一) genus 3 (家屬; 親屬) fami...
  • : Ⅰ形容詞1 (明顯) apparent; obvious; noticeable; evident 2 (有名聲有權勢的) illustrious and inf...
  • : Ⅰ名詞1 (管子) pipe; tube 2 (吹奏的樂器) wind musical instrument 3 (形狀似管的電器件) valve;...
  • 金屬 : metal
  1. This means that the dielectric property changes with height and allows a slight increase in the speed of a radio wave as we move upwards through the atmosphere. this in turn means that if a radio wave moves away from the earth at an angle less than 90 degrees, then the upper part of the wave travels faster than the lower part. therefore even under normal conditions this can in effect bend, or refract, the wave back down to earth

    其中一種著的現是:在一定的氣條件下,在大氣邊界層尤其是在近地層中傳播的電磁波,受大氣折射的影響,其傳播軌跡彎向地面,當曲率超過地球表面曲率時,電磁波會部分地被陷獲在一定厚度的大氣薄層內,就好像電磁波在波導中傳播一樣,稱為大氣波導傳播,形成波導傳播的大氣薄層稱為大氣波導層。
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