锯齿边缘的英文：
jagged edges

jagged是什么意思：
adj. 边缘不整齐的，有缺口的

The jagged rocks attracted my attention.
我被犬牙交错的岩石吸引了。

The current was sweeping her inexorably closer to the fall's jagged rim
湍流无情地把她冲向岩石狰狞的瀑布口。

The desperate ululation advanced like a jagged fringe of menace and was almost overhead
令人绝望的呜呜叫声就像充满威胁的一排排锯齿朝前推进，几乎就要落到头顶上。

From this point it took an easterly direction towards the jagged Wahsatch Mountains
火车从这儿向东，就要在险峻的瓦萨奇群山中前进。

An obstacle made of jagged glass or spikes set into masonry on top of a wall.
墙头尖刺砌于墙顶端的由碎玻璃或尖头钉组成的障碍物。

edges是什么意思：
n. 边，边缘；刀，刀口
v. 使徐徐移动；给...加边

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。