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天然辐射所致居民剂量为小剂量或低剂量率长期照射。为了对此问题进一步探讨,现以山东省119个县(市区)天然辐射外照射所致居民剂量与对应县(市区)的各类癌亡率作相关性探讨。
Residents of natural radiation caused by the dose of low-dose or low-dose long-term exposure. In order to further explore this issue, the dose of resident radiation induced by natural radiation exposure in 119 counties of Shandong Province (city area) and various types of cancer death rate in corresponding counties (urban areas) are discussed.