座椅靠背不应太斜，而应与坐垫大致垂直，驾驶人正坐时，后背大体与靠背平行。

Backrest should not be too inclined, and should be vertical, and the cushion is roughly when drivers are back roughly parallel to the back of a chair.

youdao

座椅靠背不应太斜，而应与坐垫大致垂直，驾驶人正坐时，后背大体与靠背平行。

Backrest should not be too inclined, and should be vertical, and the cushion is roughly when drivers are back roughly parallel to the back of a chair.

youdao