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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。
youdao
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A 6-wheel model of towed howitzer train is made.
建立了牵引火炮列车6轮输入模型；
youdao
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A 6-wheel model of towed howitzer train is made.
建立了牵引火炮列车6轮输入模型；
youdao