提供同一类产品或服务的企业，或者提供可相互替代产品的企业，共同构成一个行业。
Provide the same type of product or service enterprises, or to provide mutual alternative enterprises, together constitute an industry.
交换环上矩阵代数的可解子代数和幂零子代数的自同构分解问题是一类重要的具有理论意义的研究课题。
It is theoretically important to solve the problems of decomposition of automorphisms of solvable subalgebra and nilpotent subalgebra of matrix algebra over commutative rings.
本文研究了一类非结合代数的自同构。
In this paper, we study the automorphism of a type of non-associative algebra.
给出了一类新的试验多项式，可识别多项式代数的非线性自同构。
We can distinguish nonlinear automorphism of polynomials algebra by using the test polynomials.
最后证明了每一个C-模糊子空间都与一类特殊的C-模糊子空间同构，从而为模糊子空间提供了一种新的理论基础。
Each C-fuzzy subspace is isomorphic to a special C-fuzzy subspace. These discussions have built up a new theoretical foundation of fuzzy subspace.
本文综述了三类腐熟度指标，即物理、化学和生物指标，它们共同构成了一个相对完整的指标体系。
Three types maturity indices, including physical, chemical and biological indices are reviewed in this paper. They constitute a integrated indices system by comparison.
中国绿岩带型金矿床可分为同构造晚期初生型金矿床和构造期后再生型金矿床二类。
The chinese greenstone belt gold deposits can be divided into two types. One type islate syntectonic primary gold deposits, the other type is post-tectonic regenerated gold deposits.
本文提出的基于等价类法的形式背景同构判定算法，有效地提高了同构判定的效率。
This paper suggests an isomorphism detecting algorithm based on equivalent class, which improves the efficiency of context isomorphism detection.
本文提出的基于等价类法的形式背景同构判定算法，有效地提高了同构判定的效率。
This paper suggests an isomorphism detecting algorithm based on equivalent class, which improves the efficiency of context isomorphism detection.
应用推荐