Powder vacuum insulation 粉末真空绝热
vacuum powder insulation
真空粉末绝缘
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Heat preservation repairing technique for the tank by the vacuum powder heat insulation method in the air separation device is presented, and related notable matters and key points are expounded.
介绍了空分设备中真空粉末绝热贮槽保温修复技术，并详细叙述了有关的注意事项和要点。
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