概括性地介绍舞台机械安全运行须配置的安全保护装置，及它们的原理、功能、结构及安装位置。
The paper presents protective safety for stage machine, including principle, function, structure and installing the position.
概括性地介绍舞台机械安全运行须配置的安全保护装置，及它们的原理、功能、结构及安装位置。
The paper presents protective safety for stage machine, including principle, function, structure and installing the position.
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