“free electromagnetic field”的概念、定义、翻译、参考文献-科学参考

单词	free electromagnetic field
释义	free electromagnetic field [`frē i´lek·trō·mag´ned·ik `fēld] ^{ELECTROMAGNETISM} An electromagnetic field in empty space that does not interact with matter.
随便看	ground plate ground plot ground point of intercept ground position ground-position indicator ground potential ground pressure ground protection ground proximity warning system ground range ground recharge ground-referenced navigation data ground-reflected wave ground resistance ground return ground-return circuit ground rod groundscatter propagation ground sluice ground speed ground start ground state ground-state maser ground strafing ground streamer

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