对这些面向公众的小路的位置，必须进行限制严格确保人们不能接近高铁线路，以降低其对人身和财产安全的威胁。

Limitations on the location of these public access trails should also be addressed to restrict access to the HSR line and reduce risk from both safety and security perspectives.

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顾名思义，PEP是安全体系结构中基于PD p中定义的策略执行身份验证和授权规则的位置。

As the name implies, a PEP is a point in the security architecture where authentication and authorization rules are enforced, based upon the policy defined in the PDP.

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描述其位置、系统、访问方法、源数据流通和更新频率、数据安全性和数据质量。

Describe their location, systems, access approaches, source data traffic and update frequency, data security, and data quality.

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