To find out, he placed lengths of fishing line through holes in a tin can. He attached the can to the spinning part of a motorized grass edger.
为了找到答案，他把一定长度的钓鱼线穿过锡罐的小孔，然后把这个锡罐固定到机动的草坪修边器的旋转部位。
In addition, the hardware of numerical control lens-edger is designed. The USB module is also developed and two methods for the design of USB communication program are introduced.
此外，设计了数控镜片磨边机的硬件电路，完成了磨边系统usb数据通信模块的设计，并给出两种USB通信程序的设计方法。
T he relation of the four parameters with initial slab thickness, initial slab width, width reduction and edger roll diameter was obtained and a new mathematical model was accomplished as well.
得出表征立轧时轧件断面特征的四个参量与侧压量、立辊直径、板坯来料厚度及宽度间的关系，并建立了新的数学模型。
T he relation of the four parameters with initial slab thickness, initial slab width, width reduction and edger roll diameter was obtained and a new mathematical model was accomplished as well.
得出表征立轧时轧件断面特征的四个参量与侧压量、立辊直径、板坯来料厚度及宽度间的关系，并建立了新的数学模型。
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