BTW, I know very well why all cryogenics equipment MUST have safety valves.

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送交者: JFF 于 2008-06-15, 12:53:36:

回答: 你真的愚不可及！把热水瓶换成内胆的材料换成高强合金钢， 由 JFF 于 2008-06-15, 12:34:08:

But,I won't teach you for free, as u r a too stupid professor in science or even better in physics.




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