During conduct quantitative express to mechanics nature of work face coal, cutting strength is the most dependable comprehensive norm.
对工作面煤体的力学性质进行定量表征，抗截强度是最可靠的综合性指标。
2
As would be seen later, the mechanics of metal cutting are greatly dependent on the shape and size of the chips produced.
如同后面将要看到的那样，金属切削力学极大地依赖于所产生切屑的形状和尺寸。
3
The structure of No. 15 layer in Xingshan mine is analyzed with mechanics, and the fault distributed in space, interaction cutting relation and rule are revealed.