The cabin remained largely empty and was padded with a layer of cotton insulation. Four large boxes have been installed in the cabin for collecting data during test flights.

舱室很空，覆有棉质衬垫缓冲层。四个大箱子被安装在舱室中以在测试飞行时收集数据。

youdao

The cabin remained largely empty and was padded with a layer of cotton insulation. Four large boxes have been installed in the cabin for collecting data during test flights.

舱室很空，覆有棉质衬垫缓冲层。四个大箱子被安装在舱室中以在测试飞行时收集数据。

youdao