最后对凸模糊映射的次梯度、次微分和微分等概念进行了研究，为模糊极值理论打下了基础。
The notions of subgradient, subdifferential, differential with respect to convex fuzzy mappings are investigated, which provides the basis of the theory of fuzzy extremum problems.
介绍了基座切断弯曲的工艺及模具结构，并对切断凸模、定位推杆及校正弯曲机构作了简单分析。
The cutting bending process and die structure of pedestal are introduced, and the cutting convex die, localization handspike and emending bending mechanism are briefly analyzed.
研究了凸模形状、结构- 工艺因素、压应力和拉应力对冷挤压凸模耐用度的影响。
This paper studies the influence of both punch shape and constructivetechnological factors as well as the compressive and tensile stresses on the endurance of cold extrusion punches.
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