“round-trip echoes”的概念、定义、翻译、参考文献-科学参考

单词	round-trip echoes
释义	round-trip echoes [`rau̇nd ¦trip `ek·ōz] ^{ELECTROMAGNETISM} Multiple reflection echoes produced when a radar pulse is reflected from a target strongly enough so that the echo is reflected back to the target where it produces a second echo.
随便看	OCR ocrea octadecenyl aldehyde octafluorocyclobutane octafluoropropane octagon octahedral borax octahedral cleavage octahedral coordination octahedral copper ore octahedral iron ore octahedral molecule octahedral normal stress octahedral plane octahedral shear stress octahedrite octahedron octal octal base octal debugger octal digit octal loading program octal number system octanal octanedioic acid

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