時間:2011-06-19 10:13來源:藍天飛行翻譯 作者:航空 點擊:次
DECIBEL (db), A unit of gain derived by computing the 分貝,
ratio of input power to output power. 以輸人與輸出功率的比率來推算的一個增量單位。分貝
通常表示兩個聲音信號或電力信號在功率或強度方面的
相對差別的單位,相當于兩個水平的比率的常用對數的十
倍
DECISION ALTITUDE/HEIGHT (DA/H), A specified 決斷高度/高(DA /H),
altitude or height (A/H) in the precision approach at 在繼續進近必需的目視參考沒有建立的情況下開始復
which a missed approach must be initiated if the 飛的精密進近中的一個指定高度或高(A /H)。
required visual reference to continue the approach has
not been established.
DECISION HEIGHT (DH) 1, With respect to the 決斷高(DH)1,
operation of aircraft, means the height at which a 就飛機操縱而論,指在使用儀表著陸系統或精密著陸雷
decision must be made, during an ILS or PAR 達引導進近時,必須要作出的是繼續進近,還是中斷進場
instrument approach, to either continue the approach or 復飛決定時的高。
to execute a missed approach.
DECISION HEIGHT (DH) 2, An altitude used during a 決斷高(DH)2,
precision approach to trigger the decision of either 精密進近時產生繼續著陸還是復飛決定的高。
landing or go-around.
DECOMPRESSION, The loss of internal aircraft air 失壓,
pressure. 飛機失去內部空氣壓力。
DE-ENERGIZE, To turn off or cause to not operate. 斷開,
關斷或使不工作。
DEFUEL, A method for removing fuel from the tanks 排油,
using airplane fuel pumps or external suction. 用飛機的油泵或外部的吸油裝置將燃油從燃油箱排
出的方法。 |
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