There are no traces (痕迹) of radiation after testing.

测试后没有任何辐射痕迹。

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Borak added that the dosimeter is in the testing phase and hopes it will provide valuable improvements to radiation dosimetry in the coming years.

博拉克补充说放射量测定器还处在测试阶段，他希望未来几年该设备能更好的完善辐射剂量测定方法。

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Common studies included seeing the biological effects of radiation with various doses, and testing experimental treatments for cancer.

通常这类研究包括，观察在经受不同剂量辐射后的生物效应，并对癌症测试实验性的治疗等。

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Radiation testing on these pieces of debris, and the surrounding water, has not revealed any significant radiation.

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By so doing, the candidates have precipitated a firestorm of criticism from national and local anti-nuclear activists and Utah Democrats in a state which, while solidly conservative and pro-defense, has residents who claim to have been sickened by radiation from atmospheric nuclear testing upwind in Nevada decades ago.

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The radiation the researchers used in their testing is composed of highly charged iron particles, which are relatively common in space.

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