The same thermal inertia that delays by minutes the warming of water in a kettle applies to the planet's oceans, too.
类似于使水壶中的水升温慢几分钟的热隋性也适用于地球上的海洋。
The utility model relates to a thermal insulation kettle cork with automatic opening and closing, comprising a kettle cover, a kettle cork and an automatic opening and closing mechanism.
本实用新型涉及一种自动开关保温壶塞，它由壶盖、壶塞及自动开关机构组成。
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