Use the provided key to open the four turning bolts (1) of the upper panel.

使用提供的专门钥匙打开上方盖板上的四个旋栓。

youdao

On the upper panel we see the tomb owner sitting in the shrine. On the lower panel are acrobatic performances on horses and vehicles.

上层墓主端坐于祠堂之内，下层有马上及马车上的各式百戏表演。

youdao

A framework is arranged between the upper panel and the lower panel the front sides are connected with the tail sealing board of the ship, wherein, the lower panel is flushed with the ship floor.

下面板间有骨架，它们的前边均与船体的尾封板相连接，其中的下面板与船体底板平齐。

youdao

The upper instrument panel in the Civic's split-level dash features a 5-inch LCD display with standard backup camera view.

WSJ: 2013 Honda Civic EX Review: Back to Where It Once Belonged | Rumble Seat by Dan Neil

The upper flashing lights are integrated into the roof panel, eliminating the need for a bolted-on light bar that causes aerodynamic drag -- reducing fuel economy -- and can lead to rust.

CNN: Cops help dream up high-tech police car

"Rana Plaza collapsed due to blatant violation of the building code, the use of substandard material and the operation of heavy machinery including generators on the upper floors, " Main Uddin Khandaker, a civil servant who led the panel, said in an interview.

WSJ: Bangladesh Factory Collapse Blamed on Shoddy Materials