密封机制有电热丝，生产的塑料密封袋或类似时，打开热。
The sealing mechanism has a heating wire, which produces heat for sealing the plastic bag or the like when turned on.
之后，许多人都认为热水袋或电热垫对减轻疼痛很有效用，用布或毛巾将皮肤隔开以免烫伤。
After that, most people find relief from a hot-water bottle or a heating pad; use cloths or towels next to skin to avoid burns.
这种电热水袋可广泛替代旧式热水袋，不必再装热倒凉，减少了麻烦，也避免灌装热水时烫伤手。
The utility model can replace the old type hot-water bag widely without filling hot water and pouring cool water for reducing trouble and avoiding hand scald in the processes of filling the hot water.
这种电热水袋可广泛替代旧式热水袋，不必再装热倒凉，减少了麻烦，也避免灌装热水时烫伤手。
The utility model can replace the old type hot-water bag widely without filling hot water and pouring cool water for reducing trouble and avoiding hand scald in the processes of filling the hot water.
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