全断面矩形掘进机刀盘截入岩样过程试验研究
李强,刘送永,王焱

Experimental study on the process of cutting into rock samples by full-section rectangular roadheader cutterhead
Qiang LI,Songyong LIU,Yan WANG
图4 勒洛三角形在正方形内的运动过程示意
Fig.4 Schematic of motion process of Reuleaux triangle in the square