“permanent echo”的概念、定义、翻译、参考文献-科学参考

单词	permanent echo
释义	permanent echo [`pǝr·mǝ·nǝnt `ek·ō] ^{ELECTROMAGNETISM} A signal reflected from an object that is fixed with respect to a radar site.
随便看	Consol station consolute consolute temperature consonance consortism conspecific constancy constant constant-amplitude recording constant-angle fringes constant area constant-bandwidth analyzer constant-bandwidth filter constant-conductance network constant-current characteristic constant-current dc potentiometer constant-current electrolysis constant-current filter constant-current generator constant-current modulation constant-current source constant-current supply constant-current titration constant-current transformer constant-delay discriminator

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