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Radioactive materials in liquids are measured in pico-curies per liter, and the sample, taken March 25, showed a reading of 0.8 pico-curies, the agency said. 该机构声称，液体中的放射性物质是以每升含的皮居里计量的，而3月25日进行测试的样品显示为0.8皮居里。