建立了金属切削过程的二维颤振数学模型；
This Paper present a two-dimensional non-linear dynamic cutting model.
提出了一种新型的水下拖曳系统三维水动力数学模型。
Steady model of complicated underwater towed system based on virtual work principle;
提出了一种新型的水下拖曳系统三维水动力数学模型。
Steady model of complicated underwater towed system based on virtual work principle;
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