The invention also discloses the repairingdevice used in the repairing method.
本发明还公开了上述返修方法所使用的返修装置。
2
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。
3
Expenses for repairing and maintenance were reduced after the low frequency sound wave deashing device was used.