树皮在用树枝做好的框架中被拉长、延展，然后缝合在一起并用树脂密封好，就是那些从树中流出的黏黏的液体。当它干了以后就不漏水了。

The bark was stretched over frames made from tree branches, stitched together and sealed with resin—you know that the sticky liquid that comes out of the tree—and when it dries, it's watertight.

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密封好后浸泡四到五天。

Seal tightly then leave for four to five days to macerate.

《柯林斯英汉双解大词典》

如果有人已经接触到水银，要脱下污染的鞋子和衣物，装在两个袋子里，密封好。

Those who may have come into contact with mercury should be directed to remove contaminated shoes or clothing, which should be placed in two bags, sealed and closed.

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