Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版：英文原文完整保留，中文紧随对应单元；术语采用 v20260916 确认表，自动语义审校结果可追溯。

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Who is using HyperPhysics?

谁在使用HyperPhysics？

A resource that was initiated as a resource for local high school physics teachers whom I had taught has expanded into an intensively used website worldwide.

一个最初是为我曾教授过的本地高中物理教师而建立的资源，现已发展成为全球广泛使用的网站。

CD or DVD versions have been sent to 82 countries to date, and translations into German, Italian, Chinese, and Espanol have been licensed and are underway.

截至目前，CD或DVD版本已发送至82个国家，其中德语、意大利语、中文和西班牙语的翻译已获得许可，并正在推进中。

The hit rate reached about 50 million file hits per year in the fifth year and logging was suspended. Informal statistics from the server log indicate about 15 hits per user on average, so 50 million hits translates to over 3 million users per year.

第五年时，访问率达到了每年约5000万次，随后日志记录被暂停。根据服务器日志的非正式统计，平均每个用户约有15次访问，因此5000万次访问相当于每年超过300万用户。

Email traffic has increased proportionately, and an informal tally of the emails indicates the following frequency of users.

电子邮件流量相应增加，非正式的邮件统计显示了以下使用频率。
  • Students.
    学生。
  • High school teachers.
    高中教师。
  • Engineering and technical personnel in industry.
    工业中的工程技术人员。
  • Independent learners.
    独立学习者。

Search engines give over 150,000 links to HyperPhysics, mostly from educators or educational institutions.

搜索引擎给出的关于HyperPhysics的链接超过150,000个，大部分来自教育工作者或教育机构。
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