On the basis of this theoretic model, the critical production rate, the shape of water coning and the optimum perforation intervals could .
在理论模型的基础上，建立了预测临界产量、水锥形态以及优化射孔长度的数学模型。
On the basis of this theoretic model, the critical production rate, the shape of water coning and the optimum perforation intervals could be calculated by the corresponding mathematical model.
在理论模型的基础上，建立了预测临界产量、水锥形态以及优化射孔长度的数学模型。
A theory model considering the face radial coning of spiral groove gas face seals was given.
提出一种考虑螺旋槽气体密封端面径向锥度的理论模型。
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