V2EX obstruction-free

Obstruction-Free

Definition / 释义

obstruction-free(形容词):无阻碍的;不受阻挡的;畅通的。常用于描述通道、视线、流程或运行环境中没有障碍物或干扰。在计算机科学中也可指一种并发性质:系统整体能持续取得进展(但不保证每个线程都进展)。

Pronunciation / 发音

/bstrkn fri/

Examples / 例句

The emergency exit must be obstruction-free at all times.
紧急出口必须始终保持无阻碍。

To meet safety standards, the building design ensures an obstruction-free route from the lobby to the stairwell, even during peak hours.
为满足安全标准,该建筑设计确保从大厅到楼梯间的路线即使在高峰时段也保持畅通无阻。

Etymology / 词源

obstruction(阻碍、障碍)+ free(无……的)构成的复合形容词,字面意思是“没有阻碍的”。在现代英语中,这类“名词 + free”结构常用于强调“无某种问题/限制/物质”,例如 error-free(无错误的)、smoke-free(无烟的)。

Related Words / 相关词

Literary Works / 文学作品

  • Building Codes Illustrated(Francis D. K. Ching):在建筑规范与安全语境中常见类似“保持通道无阻碍”的表达。
  • OSGi in Action(Richard Hall 等):在软件/系统工程讨论中会出现类似“无阻碍(obstruction-free)的执行/访问”表述。
  • IEEE/ACM 并发与算法相关论文(如 lock-free / obstruction-free 进展条件的讨论):该词在学术技术文献中使用更为集中与规范。
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