combined cutting and welding torch是什么意思

用法例句

This paper summarizes oil vapor cleaning method,isolation method and the key points of implementation during the welding of oil depot equipment.

总结了油库设备焊割动火作业中油蒸气的清除、隔离方法及其组织实施要点,有利于油库整修改造过程中焊割动火作业的安全管理。