But it was only when a visiting scientist arranged for tests to be carried out at a German laboratory that the true nature of their plight became clear.

后来，来访的科学家们利用德国的实验室进行了一系列检测，真相才被揭露出来。

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During the summer of 2010, Yaser was a visiting scientist at the University of Helsinki in Finland where he conducted field studies in leading it and telecommunication companies.

2010年夏天Yaser作为访问学者前往芬兰赫尔辛基大学，主持了在领先的IT和电信公司内的实地研究。

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Computer geek Leonardo Bonanni PhD, came upon this problem as a Visiting Scientist at MITs Media Lab, and decided the way best way foster true transparency was to map out product supply chains, one product and company at a time.

FORBES: Mapping the Journey from Farm to Fork: Sourcemap

"There are loads of ideas floating around, and they're serious about implementing them, " said UK space scientist John Zarnecki, who is a visiting professor at Beihang University, the new name for the Beijing University of Aeronautics and Astronautics.

BBC: Rocket launches Chinese space lab