刀片的形式不主给取决于刃角。
现有菜刀的刀刃角度较小，切菜时省力。
斧头的刀刃角度较大。
进气孔是在前面正确的刃角如同您观看它从前线，并且尾气出气孔是在前面左边。
Air intake is on the front right bezel as you are viewing it from the front, and the exhaust vent is on the front left side.
现有菜刀的刀刃角度较小，切菜时省力。斧头的刀刃角度较大。用来砍骨头等物时，不容易钝。
The knife blade angle is small, when cutting labor. The axe blade angle is larger. Used to cut bones and other objects, not easy to blunt. The two blade with a knife, a double-edged knife"."
在设备研制成功的基础上，对钻孔机钻头不同钻尖、不同切土刀刃角进行了实地试验研究和分析。
Based on the machine development, a research and analyses of auger drill bits with different kinds of drill tips and soil cut blade angles were carried out in tree planting field.
突然他发现了一件很奇妙的事情，当他以一种特殊的方式转动戒指刃角的时候，屋里的人都看不到他了——他们开始议论他是不是走开了。
And then he notice a curious thing. On twisting it a particular way, he discover that it appears on one in the room can see him-they begin to talk about his as if he had left them.
突然他发现了一件很奇妙的事情，当他以一种特殊的方式转动戒指刃角的时候，屋里的人都看不到他了——他们开始议论他是不是走开了。
And then he notice a curious thing. On twisting it a particular way, he discover that it appears on one in the room can see him-they begin to talk about his as if he had left them.
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