“flat line”的概念、定义、翻译、参考文献-科学参考

单词	flat line
释义	flat line [`flat ´līn] ^{ELECTROMAGNETISM} A radio-frequency transmission line, or part thereof, having essentially 1-to-1 standing wave ratio.
随便看	pumping level pumping loss pumping pressure pumping radiation pumping station pumping well pumpkin pump off pump oscillator puna punch punch card punched card punched-card accounting machines punched-card equipment punched-card field punched-card interpreter punched-card reader punched-card reproducer punched-card sorter punched-plate screen punched tape punched-tape reader punching punching rate

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