面向下 meaning in Chinese

brow-down
face down

I just said , " lay on the bed , face down .
我只是说, "躺在床上,面向下.
Output tray face down tray : 250 sheets
面向下输出纸盘容量为250张
Sloper : any hold that slopes downward so that you can " t lock onto it . slopers are easy to slide or " grease " off of
岩面向下倾斜的点，你无法很稳的固定在上面，很容易滑掉。
The hands and the legs of the body were tied with adhesive tape . it was believed that he had been dead for some time
尸体全身赤裸，面向下，双手及双脚被胶纸捆绑，相信已死去一段时间。