英语词汇F region怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	F region
释义	F region 简明释义 F 区网络释义 1 ?f区 f区 2 ?f层 f层短语 1 F-region F层 2 e-f-region e层f层 3 Ionospheric F region 电离层F区双语例句 1 Let me call that region D of divergence, of curl F dV. 称之为在区域D上divdV的积分。 2 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的二重积分,会向大家解释这些符号的含义的。 3 What does it mean to take the average value of some function f in this region r? 在区域r上求函数f的平均值,这是什么意思？
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