建立临界源方向偏倚和指数变换相结合的耦合抽样方法，用于反应堆孔道的屏蔽计算。
The sampling method by coupling criticality source direction biasing and the exponential transform is established for duct shielding calculation.
考虑辐射安全和经济性，对中国先进研究堆(CARR)的水平烫源孔道作了屏蔽设计优化研究。
Considering the radiation security and economy factors, optimization study is done on the shielding design for the horizontal heat source ducts of China advanced research reactor (CARR).
建立临界源方向偏倚和指数变换相结合的藕合抽样方法，用于反应堆孔道的屏蔽计算。
The sampling method by coupling criticality source direction biasing and the exponential transform is established for duct shielding calculation.
水平切向孔道的屏蔽采用旋转屏蔽门屏蔽，避免了活化后塞子取出物污染空间及取放塞子的不便。
In order to avoid the pollution of the extracting material and the inconvenience of fetching the plug, a rotating shielding door is used for the purpose of the horizontal tangential channel shielding.
水平切向孔道的屏蔽采用旋转屏蔽门屏蔽，避免了活化后塞子取出物污染空间及取放塞子的不便。
In order to avoid the pollution of the extracting material and the inconvenience of fetching the plug, a rotating shielding door is used for the purpose of the horizontal tangential channel shielding.
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