least upper bound 中文意思是什麼
least upper bound
解釋
上確界-
The necessary condition has been obtained on forming rolling workpiece surface defect by means of upper - bound method and least energy principle
以此為基礎,並藉助于上限原理和最小能量原理,獲得了楔橫軋成形階梯軸時軋件表面缺陷形成的必要條件。
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