... 分组交换 packet switching 大修保修 overhaul guarantee 环境要素 environmental factor ...
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guarantee system of overhaul quality 大修质量保证体系
·2,447,543篇论文数据，部分数据来源于NoteExpress
It is urgently needed to overhaul two blast furnaces in GIS for their terminal campaign, damaged furnace-body, aged equipment, worse technical and economic index and low safety guarantee.
广钢两座进入炉龄晚期的高炉，炉体破损，设备老化，技术经济指标恶化，安全生产受到威胁，对高炉大修刻不容缓。
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