acyclic
adj. 非循环的；[物] 非周期的
例句
The graph must be acyclic to avoid program scheduling deadlocks.
这个图必须是无环的，以避免造成调度上的死锁。
Algorithm to find a hierarchy tree in a directed acyclic graph?
算法来找到一个层次树在一个有向无环图吗？
Is it practical to store unique paths through a directed acyclic graph?
这是存储唯一的路径通过一个有向无环图的现实？
