The safety screw is one of the most important parts of the paper knife.
切纸刀保护螺栓是切纸刀的关键保护部件。
The blade of the paper knife of the utility model is convenient to change.
本实用新型的割纸刀可方便地更换刀片。
A new scalpel-microwave knife is described in this paper.
本文描述了一种新的手术刀——微波手术刀。
This type of ball pen is used as a knife for cutting paper by teenagers.
这款圆珠笔被青少年当作小刀用来裁纸。
This type of ball pen is used as a knife for cutting paper by teenagers.
这款圆珠笔被青少年当作小刀用来裁纸。
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