Close the forward access door.

关闭前接近门。

Aft Unpressurized Compartment Access Door, 311bl.

打开后非增压舱接近门，311bl。

Aft of which is the APU access door and APU exhaust.

在它们的后面是APU检修口和APU排气口。

Have you opened the access door and found the cause?

你们打开道门查找过原因了吗？

Open the control panel and the cartridge access door.

打开操作面板和墨盒保护门。