991、Such wires and cables shall be capable e of being connected to the ground network of the aircraft
electrical system.
这种电线和电缆应能够连接到飞机电气系统的地面网络

282、 Set the applicable L PACK switch or the R PACK switch, on the P5-10 air conditioning panel, to the AUTO position.
将 P5-10 空调面板上对应的 L PACK 或 R PACK 开关设置为“AUTO”位置。

281、 The ventilation system uses differentia pressure to pull air out of the airplane

280、 Put a transparent sheet of plastic on the surface.

279、 He removed the access panel to see the corroded tube.

278、Engine Controls and Instruments include, definitions, descriptions or explanations of the following terms or components. The definitions, descriptions land explanations provided are examples. Those used in a particular Handbook should be appropriate for that particular airplane of installation.

277、Airline operators are encouraged to evaluate their particular 737NG operating environment,
accompanied with debris findings at time of leaning to identify and implement(执行)the most effective and economic maintenance interval.
鼓励航空公司运营商评估其特定的 737NG 运行环境,并在倾斜时发现碎片,以确定和实施最有效和经济的维护间隔

276、Provide ventilation for lavatories and galleys.

275、Fill the space between the patch and the adjacent structure with sealant.

274、If contamination causes a blockage of more than 50 percent of the holes, then clean the holes on the
rear of the display units.

273、The system design makes sure that two AC power sources can not supply power to the same transfer
bus at the same time.