下限定理 meaning in Chinese

lower bound theorem

The conditions necessary for verification of the upper and lower limit theorem , which have been now verified , were analyzed
摘要对目前所证明的上、下限定理所需的条件进行了分析，认为目前的证明尚存在值得进一步推敲的疑点。
This dissertation verifies the applicability of the upper limit theorem and the lower limit theorem in the classical plastic limit analysis theory , and gives correspondingly constrained conditions
从理论上论证了经典的塑性极限分析理论中的上、下限定理对散体材料的适用性，并给出了相应的限制条件。