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(dòng)機(jī)滑油系統(tǒng)與大氣相通的通氣口。

                                      TECHNICAL DICTIONARY                                   22

----------------------- Page 24-----------------------

英漢對(duì)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(jī)翼上表面的不穩(wěn)定氣流引起的機(jī)翼和機(jī)體的振

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

airspeed is too fast.

BUILT-IN TEST EQUIPMENT, Equipment installed on       自檢設(shè)備，

the airplane and in airplane systems to test the systems 安裝在飛機(jī)和飛機(jī)系統(tǒng)中，在無(wú)外接檢測(cè)設(shè)備情況下，

without external test equipment.                      用于檢測(cè)系統(tǒng)的設(shè)備。

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

capability present before the onset of buffet.          飛機(jī)在遭遇抖振之前，剩余機(jī)動(dòng)能力的大小。

BUG SPEED, A preselecteed speed to be observed        游標(biāo)速度，

during certain maneuvers, particularly the approach and 在某些機(jī)動(dòng)飛行過(guò)程中，特別是在進(jìn)近和著陸時(shí)，飛機(jī)

landing sequence.                                     所應(yīng)保持的預(yù)定速度。

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

wing.                                                   機(jī)身或機(jī)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(jī)械設(shè)備（彈簧或減震器）。

                                                      匯流條，