Reality shielding thickness accord with the demands of radiation protection by comparing with calculation result of shielding thickness.
并与实际屏蔽厚度进行了对比，得出了实际屏蔽厚度均符合辐射防护要求结论。
When the thickness of the shielding materials doubled, some clinical symptoms further improved.
屏蔽材料的厚度增加一倍，可使某些临床症状进一步改善。
Futher, the shielding effect of lead with different thickness has been studied.
比较了不同厚度的铅的防护效果。
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