V2EX dsl

DSL

定义 Definition

DSL 最常见指 Digital Subscriber Line(数字用户线路):一种利用传统电话铜线提供宽带上网的接入技术,通常“电话”和“上网”可同时使用。
(另一个常见含义是 domain-specific language(领域特定语言),指为某一类问题或行业专门设计的编程/描述语言。)

发音 Pronunciation

/di es el/

例句 Examples

I used DSL before fiber was available in my area.
在我所在地区还没有光纤之前,我用的是 DSL。

Because the company relies on DSL, heavy rain sometimes causes unstable connections and higher latency during video meetings.
由于公司依赖 DSL,暴雨天气有时会导致连接不稳定,视频会议时延迟也更高。

词源 Etymology

DSL 是首字母缩略词,来自 Digital(数字)+ Subscriber(用户)+ Line(线路)。它在 20 世纪 90 年代被广泛推广,用来描述在传统电话线基础上通过调制与分频等方式实现的“宽带化”接入技术(如 ADSL、VDSL 等)。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Computer Networks(Andrew S. Tanenbaum, David J. Wetherall)在接入网/宽带技术章节中讨论过 DSL 等方案
  • Data and Computer Communications(William Stallings)在广域网与接入技术部分提及 DSL 家族技术
  • Broadband Access Networks: Technologies and Deployments(相关领域教材/专著)以 DSL 作为典型宽带接入技术之一进行介绍
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