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有问题的语法：
**目标：** 使用``sros2``设置安全性。
请联系:ref:`ROS 2安全工作组 <Security Working Group>`。
doc:`ROS 2安装指南 <../../../Installation>`和:doc:`配置指南 <../../Beginner-CLI-Tools/Configuring-ROS2-Environment>`
请查看`安全的Turtlebot2演示 <https://github.com/ros-swg/turtlebot3_demo>`_。
