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F region

  • F 区

网络释义专业释义英英释义

  f区

f区

基于8个网页-相关网页

  f层

f层

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短语

F-region F层

e-f-region e层f层

Ionospheric F region 电离层F区

F - region F区

chart f region 赤道F区

F-region current F层电流

trn l-f region trnlf序列

f-region in ionosphere 电离层f层

f region magnetic noon phenomena 磁中午现象

 更多收起网络短语
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·2,447,543篇论文数据,部分数据来源于NoteExpress

F region

  • n. the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission

    同义词: Appleton layer F layer

以上来源于: WordNet

 柯林斯英汉双解大词典 

F region

  • 1. 

    N the highest region of the ionosphere, extending from a height of about 150 kilometres to about 1000 kilometres. It contains the highest proportion of free electrons and is the most useful region for long-range radio transmission F电离层 (Also called Appleton layer) → see also ionosphere

双语例句权威例句

  • Let me call that region D of divergence, of curl F dV.

    称之为区域D上divdV积分

    youdao

  • So, we'll call that the double integral of our region, R, of f of xy dA and I will have to explain what the notation means.

    称之为区域R上fdA二重积分,大家解释这些符号含义的。

    youdao

  • What does it mean to take the average value of some function f in this region r?

    区域r上求函数f平均值,什么意思

    youdao

更多双语例句
  • Hagel also suggested that the Pentagon's five-year budget plan continues to plan for additional F-22 Raptor fighter jets and F-35 Joint Strike Fighters in the region, along with a fourth fast-attack submarine deployed to Guam.

    NPR: Hagel Warns China On Cyberattacks

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