单词	step-down fix
释义	step-down fix step-down fix A fix permitting additional descent within a segment of an instrument approach procedure by identifying a point at which the controlling obstacle has been safely overflown. AcronymsSeeSDF
随便看	occur to someone oc curve occv occvb occwd occwrt occy ocd ocda ocdac ocdbe ocdc ocdcu ocdd ocd (disambiguation) ocde ocdea ocdeaf ocdel ocdem ocdetf ocdf ocdg ocdh ocdhs

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