Artificial radionuclides

Preparation and application of artificial radionuclides

人工放射性核素的制备和应用

The activity of artificial radionuclides in some areas has a relationship to the location and time of sampling .

局部区域的人工放射性活度与采样时间和地理位置有关。

The level of artificial radionuclides on earth shows a decrease tendency and with different degree in each sea area .

全球人工放射性活度呈下降趋势，但各海区下降的程度不同。