Now wa team at the United Arab Emirates University have worked out a way of modifying the chemicals to remove their harmful side-effects.

现在，阿联酋大学的一个研究小组找到了一种办法，对这些化学物质进行处理，消除有害的副作用。

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Dr Jonathan Benjamin, of WA Coastal and Marine and the University of Edinburgh, said Scotland was a maritime nation with a rich seafaring history.

BBC: Sutherland shipwreck intrigues archaeologists