absorb a predetermined amount of energy during a      大起飛重量。

rejected takeoff.

BREATHER, A vent to ambient of the engine oil system. 通氣裝置，

                                                        發(fā)動機滑油系統(tǒng)與大氣相通的通氣口。

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英漢對照民用航空詞典                                     BOEING

BUFFET, Vibration of the wings and airframe resulting 抖振，

from unsteady airflow over the wing; caused when        由于機翼上表面的不穩(wěn)定氣流引起的機翼和機體的振

airspeed is too slow, the bank angle is too steep, or 動。飛行速度太慢或太快，坡度太大，均會引起抖振。

airspeed is too fast.

BUILT-IN TEST EQUIPMENT, Equipment installed on       自檢設備，

the airplane and in airplane systems to test the systems 安裝在飛機和飛機系統(tǒng)中，在無外接檢測設備情況下，

without external test equipment.                      用于檢測系統(tǒng)的設備。

BUFFET MARGIN, The amount of residual maneuver        抖振裕度，

capability present before the onset of buffet.          飛機在遭遇抖振之前，剩余機動能力的大小。

BUG SPEED, A preselecteed speed to be observed        游標速度，

during certain maneuvers, particularly the approach and 在某些機動飛行過程中，特別是在進近和著陸時，飛機

landing sequence.                                     所應保持的預定速度。

BULKHEAD, A structural partition in the fuselage or   壁板式隔框，

wing.                                                   機身或機翼內(nèi)一種結(jié)構(gòu)隔板。

BUNGEE, A mechanical device (spring or a shock        張力裝置，

absorber) for assisting landing gear operation.         用于協(xié)助起落架工作的一種機械設備（彈簧或減震器）。

                                                      匯流條，