And study how to choose blasting incision Angle with material mechanics.
运用材料力学理论，初步研究了烟囱爆破切口角的选取。
We should draw stress circle according to the sign provision of material mechanics .
在画应力圆时，应按材料力学的符号规定。
Experiment of eccentric tension is one of teaching content of material mechanics experiment.
偏心拉伸试验是材料力学试验教学内容之一。
Experiment of eccentric tension is one of teaching content of material mechanics experiment.
偏心拉伸试验是材料力学试验教学内容之一。
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