Sievert (Sv): A measure of the effective dose—that is, the health effects of the radiation, with different types of ionizing radiation (gamma rays, X-rays, alpha particles, and so on) having different effects. One sievert equals 1 joule per kilogram weighted for the biological effectiveness of the radiation and the tissues exposed.
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"My mother was completely isolated, and the impact of her grief has been profound, complex and far-reaching."，推荐阅读新收录的资料获取更多信息
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2019年前后，刘成夫妻开始接触代孕中介。当时，中介承诺孩子的《出生医学证明》会写上夫妻俩的名字。，推荐阅读新收录的资料获取更多信息