Methods: special subject research was made, and radiation protection specialists were consulted.
方法：专题研究并咨询辐射防护专家。
We aim to help enterprises solve and research a particular or a special subject.
旨在帮助企业解决某一方面或某一课题的专项研究。
We aim to help enterprises solve and research a particular or a special subject.
旨在帮助企业解决某一方面或某一课题的专项研究。
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