俘获截面是有效截面的一种，粒子击中靶后被原子核俘获的几率。
中子寿命与俘获截面是倒数关系。
Neutron lifetime is inversely related to capture cross section.
从中可以提取地层的宏观俘获截面，计算储层的剩余油饱和度。
The macro seized section could been attained form that reaction and applied for calculating saturation of remained oil.
延长曝光不仅增加新的复合中心，还改变原有复合中心的俘获截面。
Prolonged exposure not only increased new recombination center but also changed the capture cross section of original recombination centers.
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