1087. At each end of the central housing is a hydraulic manifold which contains an annular piston ( )

3213. 2 hours are necessary to do the procedure ( )

3212. 该限制适用于该规范的所有版本。 ( )

3211. Those units and components store, regulate, and deliver oxygen to the passengers and crew, including bottles, relief valves, shut-off valves, outlets, regulators, masks, etc( )

3210. 用来处理水和废物的系统部分。包括洗手池、水柜、冲水系统等。 ( )

3209. For case of reference, these dividers shall be staggered ( )

3208. Get a sample of fuel and do a test for water contamination( )

3207. 确保油箱里的燃油不超过 500 升。 ( )

3206. Keep personnel away from the aircraft when the thrust reverser deploys ( )

3205. 氧化很容易发生 ( )

3204. 将方式选择电门放置在加油位。( )