求翻译：事故单位视安全事故现场状况及危害程度，启动相应等级预案，组织自救和配合专业部门开展抢救，并保护现场。是什么意思？

Accident unit, as the security situation and the hazards of the scene, start the appropriate level of plan, organize self-help and professional sectors with the rescue, and protect the scene.

The scene of the accident accident units depending on the security situation and degree of danger, and start the corresponding rating organizations, self-help and professional sectors with rescue, and protect the scene.

The accident unit regards the security accident scene condition and the harm degree, the start corresponding rank predetermined plan, the organization helps oneself with the coordinate specialized department to carry out the rescue, and protects the scene.

Accident unit view the scene of the accident conditions and hazards, start the appropriate grade plans, organization of self-help and supporting professional departments carry out rescue and protection field.

Accident unit, as the security situation and the hazards of the scene, start the appropriate level of plan, organize self-help and professional sectors with the rescue, and protect the scene.