英语词汇F region的读音、用法、中文释义、短语词组及例句-英汉双解词典

单词	F region
释义	F region ['ef,ri:d?i?n] 释义 [气象学]F区,F(电离)层英英释义 Noun 1. the highest region of the ionosphere (from 90 to 600 miles up) that contains the highest concentration of free electrons and is most useful for long-range radio transmission
随便看	chestnutbark disease chestnut-bark diseases chestnut blight chestnut blights chestnutbrown chestnut brown chestnut-brown chestnut-browns chestnut brown soil chestnut callosity chestnut canker chestnut cankers chestnut coal chestnut (coal) chestnut-colored chestnutcolored chestnut-colored soil chestnut colo(u)r chestnut colour chestnut colour cloth chestnut-coloured chestnutcoloured chestnut-coloureds chestnut colo(u)red soil chestnut coloured soil

英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

F region