用结构方程模型研究了环境不确定性对开放式技术创新战略的影响。
The findings show that environmental uncertainty can promote enterprises to take the open technology innovation strategy in general.
仿真结果表明，用本文提出的简化模型能较好地逼近基于偏微分方程的严格模型，且结构简单，易于应用。
Simulation results show that the simplified model provided by this method can satisfactorily imitate rigorous model in addition to its simple structure and feasibility for on line applications.
用此模型建立裂纹梁运动控制微分方程，这样，对于含裂纹结构可采用与无裂纹时同样的分析方法。
Differential equation of motion control of the cracked beam is set up using this model, so that the same analytical methods are applied as crack-free structure for the cracked.
用此模型建立裂纹梁运动控制微分方程，这样，对于含裂纹结构可采用与无裂纹时同样的分析方法。
Differential equation of motion control of the cracked beam is set up using this model, so that the same analytical methods are applied as crack-free structure for the cracked.
应用推荐