BUS, A single wire or group of wires which transfers    在部件或组件之间传输电、数据、或定时的单一电线或

power, data, or timing between several units or       电线组。

modules.

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英汉对照民用航空词典                                     BOEING

BUS DRUM, A mechanical connection with pulleys and    转动鼓轮，

cables in the control system.                           在操纵系统中，具有滑轮和钢索的机械式连接。

BUS PROTECTION PANEL, A module (black box)            汇流条防护板，

containing electrical circuits for control and protection of 黑匣子式的组件，内含控制和保护飞机交流电源的电

electrical alternating current supply to the airplane. 路。

BUTTERFLY VALVE, An actuator-operated, rotating       蝶形活门，

device in a duct for closing and opening the duct       是一个在管道中由作动简控制的转动装置。用来关闭和

passage.                                              开启管道。

BUTTOCK LINE, A vertical reference plane along the    纵剖线，

fuselage for horizontal measurements of the airplane.   沿机身走向的垂直参考面，用于飞机的水平测量。

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英汉对照民用航空词典                                     BOEING

BYPASS VALVE, A valve through which air or fluid will 旁通活门，

flow if the normal flow path is blocked.               气流或液流在正常通道阻塞时所经过的活门。

BYTE, A group or string of binary digits. A byte is  字节，

usually eight bits long.                               一组或一列二进制数。通常一个字节长8位。

C