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英漢對照民用航空詞典                                   BOEING

DRAG, The aerodynamic related force on an aircraft  阻力，

during flight acting in the direction opposite aircraft 飛行時作用在飛機上的一種氣動力，其方向與飛機運

motion.                                             動方向相反。

DRAG BRACE, A component on the main landing gear    阻力撐桿，

for support of the shock strut.                       主起落架上用以支持減震支柱的部件。

DRAG STRUT, A component on the nose or main         阻力撐桿柱，

landing gear for support of the shock strut.            前或主起落架上用以支持減震支柱的部件。

DRAIN VALVE, A valve for removing fluid from a      放泄活門，

reservoir.                                            從貯存箱往外排放液體的活門。

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英漢對照民用航空詞典                                    BOEING

DRAWING, Information presented in a graphic form.    圖，

                                                       用圖解形式展示的數(shù)據(jù)資料。

DRIFT ANGLE, An angle computed by subtracting the    偏流角，

airplane heading from the airplane track.              飛機的航向與飛機的航跡的差角。

DRIFTDOWN, The loss of aircraft altitude caused by the 飄降，

loss of power in one or more engines and the inability of 由于一臺或數(shù)臺發(fā)動機失去推力，飛機不能保持現(xiàn)時

the aircraft to maintain current altitude and speed. 高度和速度而導致的飛機掉高度。

DIPSTICK, A component located in the bottom skin of  量油尺，

the fuel tank for measuring fuel quantity in the airplane 位于飛機燃油箱底部的蒙皮內，用以量取燃油油量的

tank.                                                部件。