单词acyclic
adj.: 非周期的；非循环的；无环的；非环状的
网络: 非轮生的；非周期性的；无回路的
非周期的；非循环的:
not occurring in cycles
无环的；非环状的:
containing no rings of atoms
单极
非周期性的;【化学】非环式的;【植物;植物学】非轮生的
开链式的
非环形的
非轮列的
无周期的
无环族的
非循环的
非循环式的
The directed acyclic graph (DAG) is applied to the parallel multiprocessor system to present the dependence relationship between tasks.
在并行多处理器系统中，通常用有向无环图（DAG）表示任务之间的依赖关系。
Thus, the directed cyclic network has been transformed into a directed acyclic network.
这样有向有环网络被转化成了有向无环网络。
A product type hierarchy is a strict tree, whereas a category hierarchy can be a directed acyclic graph.
产品类型层次结构是一个严格的树，而类别层次结构则是一个有方向的非循环图表。
The isocyanates can be obtained by the fluorination of nitrogenous cyclic or acyclic molecules .
异氰酸酯可由含氯的环（或非环）状分子氟化而得。
GO(Gene Ontology) is a set of dynamic controlled vocabulary, its structure is DAG (Directed Acyclic Graph).
基因本体（GO）是一套具有动态形式的控制词汇，其结构为有向无环图。
Acyclic database has many good characteristics, so acyclic is an important characteristic for database schema.
无环数据库有许多优良特性，因此，无环成为判断数据库模式优劣的重要特性。
The presentation structure of the relationship between feature items is formalized as a special kind of directed acyclic graph .
与已有的研究相比，特征项之间的关系表示结构从有向根树扩展到了有向无环图。
Directed acyclic graph support vector (DAG-SVMS) multi-category classification methods, is a new multi-category classification methods.
有向无环图支持向量（DAG-SVMS）多类分类方法，是一种新的多类分类方法。
Acyclic alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives.
无环醇及其卤化、磺化、硝化或亚硝化衍生物。
XU Bao-gang conjectured : If the clique complex C(G) of a graph G is acyclic, G is contractible.
许宝刚猜想：若图G的团复形是无圈的，则G为可伸缩图。