炕沿的英文：
edge of a kang

The number of incoming edges is equal to the number of outgoing edges
进入的线数等于离去的线数。

pipe edges sewing machine
滚边缝纫机

Sloth turneth the edge of wit
懒惰会磨去才智的锋芒

The knife's edges have blunted.
这刀刃已变钝了。

Gripper edge: Edge of a sheet to be gripped by the grippers of a printing machine.Also called Feed edge,Leading edge.
夹牙边:被印刷机上的夹牙抓牢的纸边。亦称前纸边，纸头。

Put the damp clothes on a hot kang and they'll soon dry
湿衣服搁在热坑上,一会儿就炮干了。

What predominant bright side is there in Kao Kang's case?
高岗有什么光明面占优势呀?

Che yin studied by the light of glowworm and Sun Kang studied by the light of snow.—to study very diligently
车萤孙雪

"She tried to carry on as usual at first but soon had to give up and lie down, fully dressed, on the kang. "

A long silence followed. Then two women brought in a low table covered with scarcely touched dishes of fish and meat which they set down on the kang.