But there should be enough neodymium available, the study argues, since current world reserves of the element are about six times larger than needed.
但是报告上说应该有足够的可使用的钕，因为目前世界上储备的金属量是人类需要的6倍多。
In the thesis, the study actuality about temperature stresses is firstly summarized, and some finite element analysis theories and methods of concrete are also introduced in brief.
本文首先总结了近年来国内外温度应力的研究现状，简要的介绍了混凝土有限元分析理论。
On the basis of finite element analysis, 5 concrete columns were made to carry on the experimental study about the measurement of working stress of concrete by the ring-hole method.
本文是在有限元模拟分析基础上，制作5根混凝土柱，进行环孔法测试混凝土工作应力的试验研究。
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