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sreweekly/markdown/311/07-the-origin-of-service-level-objectives.md

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+# The origin of Service Level Objectives
+
+- **期号**: SRE Weekly Issue #311（2022-02-27）
+- **作者**: Akshay Chugh and Piyush Verma — Last9
+- **链接**: https://blog.last9.io/the-origin-of-service-level-objectives/
+
+## 简介
+
+The term “service level” goes back to the US highway system maintenance procedures, among others.
+
+## 正文
+
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