小刀冰凉的刀尖。
这里是一杆的我如何建立起刀尖圆弧半径。
至于刀子或剪刀等利器,应把刀尖向着自己。
As for the knife or scissors and other sharp object, should Corner Towards their own.
那刀尖很锋利。
虽然也有硬质合金刀尖的钻头,麻花钻一般用高速钢制成。
Twist drills are usually made of high-speed steel, although carbide-tipped drills are also available.
虽然也有硬质合金刀尖的钻头,麻花钻一般用高速钢制成。
Twist drills are usually made of high-speed steel, although carbide-tipped drills are also available.
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