材料中此点附近的一个单元体，其表现犹如正交晶系的晶体。
An element of the material at such a point behaves like a crystal of the orthorhombic system.
对平衡区组正交表和正交表进行的数据分析作了比较，表现出平衡区组正交表的优良性。
This paper deals with comparisons on the data analysis between balanced block orthogonal arrays and orthogonal arrays, and find the excellent property of balanced block orthogonal arrays.
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