注射剂指__________制成的___________的_____________
11.2 The stress intensity factor is dependent on
A. Temperature
B. The applied stress
C. The length of crack
D. Young's modulus
11.1 As long as the linear elastic assumptions hold, Fracture toughness is a materials constant.
A. 对
B. 错
11.3 Fatigue will occur due to various kinds of dynamic loads.
A. 对
B. 错