核物质的物理性保护核物质保护，国际原子能总署。
"Physical Protection of Nuclear Material." Protection of Material. International Atomic Energy Agency.
该物质具有保护人体免疫系统的细胞不受艾滋病毒侵袭的作用。
The material has the protection of the human immune system cells from HIV attack.
而对HDL我们检测的胆固醇不是一个保护性物质。
The cholesterol that we measure in HDL is not the protective agent.
课题在与老师的交流后，确定为《蔚县剪纸非物质文化的开发与保护》。
Topic exchange with the teacher has identified as "non-material culture Yuxian paper-cut development and protection."
核物质的物理性保护核物质保护，国际原子能总署。
Physical Protection of Nuclear Material. "Protection of Material. International Atomic Energy Agency."
核物质的物理性保护核物质保护，国际原子能总署。
Physical Protection of Nuclear Material. "Protection of Material. International Atomic Energy Agency."
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