The development of Metal-Refractory multiple structure in china has been discussed.
前言： 综合论述了我国钢铁冶炼业“ 金属—耐材”复合结构的研究现状。
Because the concrete has the multiple structure and non-isotropic compound materials system, it will present the error through the partial research to the whole method.
混凝土材料是复杂结构的非均质复合材料体系，通过局部的研究对整体的外推就难免出现谬误。
Because the concrete has the multiple structure and non-isotropic compound materials system, it will present the error through the partial research to the whole method.
混凝土材料是复杂结构的非均质复合材料体系，通过局部的研究对整体的外推就难免出现谬误。
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