“letdown”的概念、定义、翻译、参考文献-科学参考

单词	letdown
释义	letdown [`let´dau̇n] ^{AEROSPACE ENGINEERING} Gradual and orderly reduction in altitude, particularly in preparation for landing.
随便看	jamesonite Jamin effect Jamin refractometer jammer jammer finder jamming jam nut Janecke coordinates jansky J antenna January thaw Janus Janus system japan Japan Current Japanese encephalitis Japanese peppermint oil japanning Japan paper Japan tallow Japan wax Japygidae jar jar coupling jardiniere glaze

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