1.
a fulcrum bearing
支点承座, 刀口承
2.
Don't mess around with sharp knives!
不要摆弄刀口锋利的刀！
3.
He nicked the razor.
他弄缺了剃刀刀口。
4.
Fix [Unfix] bayonets!
（口令）上[下]刺刀！
5.
Unfix bayonet!
【军】[口令]下刺刀!
6.
'On the top of the gallows is fixed the knife, blade upwards, with its point in the air.
“绞架顶上捆着他那把刀，刀口向上，刀尖在空中。
7.
His stiff beard turns the edge of the razor.
他的硬胡子把剃须刀的刀口给弄钝了。
8.
He bought a razor with a keen edge.
他买了一把刀口锋利的剃刀。
9.
Having an edge or edges of a specified type
有某类刀口、边缘等的
10.
He turned the edge of the knife.
他使刀口卷刃[变钝]。
11.
blade-fork contact
刀口音叉式触点簧片
12.
It is difficult to steel the razor.
把剃刀口钢化不太容易。
13.
an ugly wound, gash,scar, etc
丑陋的伤口、 刀伤、 伤痕等
14.
That knife has a sharp edge.
那把刀的刃口锋利。
15.
The blade is chipped in a few places.
刀锋有几个地方缺口。
16.
Ask about incisions. Where will they be located and how bad can the scarring be?
关于刀口。刀口开在哪里？疤痕将会是什么样子的？
17.
Groove Cutter Design and the Second-Development on Pro/Engineer for "the CAD System for Groove Cutter";
组合企口铣刀设计及企口铣刀CAD系统的研制
18.
cageless bearing
无保持架轴承,开口轴承