“crystal shutter”的概念、定义、翻译、参考文献-科学参考

单词	crystal shutter
释义	crystal shutter [¦krist·ǝl `shǝd·ǝr] ^{ELECTROMAGNETISM} Mechanical waveguide or coaxial-cable shorting switch that, when closed, prevents undesired radio-frequency energy from reaching and damaging a crystal detector.
随便看	dropout voltage dropping angle dropping fraction dropping-mercury electrode dropping point dropping resistor dropping test drop press drop relay drop repeater drop siding drop-size distribution dropsonde dropsonde dispenser dropsonde observation drop spillway dropsy drop tank drop theory drop vent drop weight drop-weight method drop wire dropwise condensation Droseraceae

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