This causes the creation of an “ice tube”, the inner diameter of which slowly constricts until no more water can flow through.

它产生了一种可称之为“冰管”的东西，内部的直径逐渐缩小最后水流就无法经过，冻住了。

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Note the massive ice stalagmite growing up from the ground to meet the ice tube… will the water freeze before the twain shall meet?

现在看看这些从地上“长”起来的巨大的冰柱，水会在它和和“冰管”连住之前冻住么？

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You will need a vessel to heat water in, a source of heat, gauze or muslin, thread, a delivery tube, a receiving vessel and ice.

需要一个加热开水的容器、热源、沙布或棉布、线，导管、接收容器、冰。

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Browne first donned a crash helmet and hurtled down a tube of ice at a two-week training camp in Calgary when she was 29.

BBC: Luger makes Olympic history