716. 能量永远不会产生或消失这是一条物理定律。它只是从一种能量变成了另一种能量。在我们的例子中,动能在刹车时转变为热能。

2647. When it is necessary to order any wire bundles from Boeing, operators should provide the base wire bundle number (61-30396 in this case) and tail number of the airplane where the bundle is to be installed on

2646. Determine which door has failed to close

2645. 在整个手册中,每个单独系统应使用相同的编码。

2644. Electronic devices that are used in nearly all aircraft systems are/the computer for system control and monitoring and the control inputs and indications in the cockpit and sensors throughout the whole aircraft

2643. The BITE function collects the failures and sends the failure message to the central maintenance computer

2642. This is the minimum concentration of flammable vapors in air below which propagation of flame does not occur on contact with a source of ignition

2641. 有原因或没有原因,文本都可以分为一栏或两栏。

2640. 气动系统从气动气源获取压缩空气,并通过管道向用户系统供应压缩空气。

2639. When the preset threshold is reached, the smoke detector triggers a warning via the Cabin Intercommunication Data System

2638. Ground Proximity Warning System tells the crew if the aircraft is in a dangerous configuration when it goes hear the ground in a non - predetermined manner