2128. 不要让压力小于(或大于)20psi

Do not make the pressure became less than (or more than)20 psi.

Do not let the pressure become less than (or more than)20 psi.

Do not let the pressure close less than (or more than) 20 psi.

正确答案：B

设备系统操作理论翻译

扫码进入小程序
随时随地练习

1235. The aircraft and engine manufacturers recommend that you do not weld engine components when the engine is installed on the airframe

1234. 当相应的装置运行时,如果信号器面板TRANSIT灯不亮,则认为该灯不工作

1233. Do a continuity check at the Alternate Exhaust Fan Receptacle

1232. 确保紧固件头部与蒙皮齐平

1231. 起落架位置对失速速度没有影响

1230. Check all parts for obvious defects in accordance with standard industry practices

1229. In these conditions, the mechanical and electrical pitch trim systems will not operate

1228. Provide ventilation for lavatories and galleys

1227. Disconnect the connection which is downstream of the valve

1226. If bronze particles were found, repeat this full procedure ( )within 30 days from the date of the findings