pre-emergency planning and recovery
...素灭火剂1301的使用及保养(Use and maintenance of existing Halon 1301) 应急计划和恢复(Pre-emergency Planning and Recovery) 变压器推荐测试限制(Transformer Recommended Tests Limits) ..
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pre-emergency planning and recovery
应急前规划和恢复
以上为机器翻译结果，长、整句建议使用 人工翻译 。