Andrei Lugovoi - the man who allegedly slipped radioactive polonium into former KGB agent Alexander Litvinenko's tea - enjoys the personal protection of Putin.

安德烈·卢戈沃伊——被控把放射性钋投入前克格勃特工亚历山大·利特维年科的茶里的人——得到普金的私人保护。

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The present study demonstrated that the radioactive labelled VIP is a promosing agent for tumor VIP receptor scintigraphy.

本研究表明放射性核素标记VIP可望成为一有效的肿瘤VIP受体显像剂。

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A poisonous, radioactive orange powder, UO3, used for uranium refining and as a coloring agent in ceramics.

有毒，有放射性的桔黄色粉末，UO3，用于铀的提炼和陶瓷工艺中的染料。

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Florbetapir is a radioactive coloring agent.

VOA: special.2011.02.08

The test uses a chemical called florbetapir, known by the brand name Amyvid, which is a radioactive agent that tags clumps of a sticky substance called an amyloid.

WSJ: FDA Approves Alzheimer's Test Developed by Eli Lilly

He was a friend and close associate of Alexander Litvinenko, the former Russian security agent who died in London in 2006 after drinking tea laced with radioactive polonium.

WSJ: Boris Berezovsky, Exiled Russian Tycoon, Dies