警方正对工地人员进行调查。

The police were investigating workers from the site.

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“伦敦消防大队是在现场和消耗臭氧物质的工地人员正与它们密切合作，”它补充说。

"The London Fire Brigade is on site and the ODS's site staff are working closely with them," it added.

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目前，这种装置还只是个原型，不过，开发人员相信，这种核心可以用于建筑工地，甚至可以搬动残疾人到处走动。

At the moment the device is only a prototype, but developers believe Core could be used on building sites or even to move disabled people around.

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