Thus it shows that the coexistence theory of slag structure is applicable to slag system Na2O-SiO2 too.
由此证明炉渣结构的共存理论对本渣系也是适用的。
The difference, however, is that no theory is built up about the coexistence of two substances, reflecting the accidents of one to the exclusion of the other.
差异，但问题在于，没有任何一种理论是建立了对共存的两种物质，这反映了意外，一至排斥其他。
Therefore, in this thesis, a new theory, coexistence theory, is proposed to explain the fact that both phenomena of deficiency and compensation can be found in people with visual impairments.
因此，研究者试图提出一种新的理论——“并存说”，即对于视障者来说，感知觉的缺陷现象与补偿现象是同时存在的。
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