There are four principal neutron interactions that affect formation evaluation: elastic neutron scattering, inelastic neutron scattering, fast-neutron reactions and neutron capture.
影响地层评价的中子反应有四种，包括中子弹性散射、中子非弹性散射、快中子反应和中子俘获。
A theory and a corresponding numerical technique to deal with the coupled interactions between the liquid sloshing and the elastic structures are presented.
提出了处理粘性流体晃荡与弹性结构相互耦合作用的理论及相应数值计算方法。
Pure elastic fracture is always rare, so th at under the action of stress, a plastic zone(large or small), and interactions between crack and dislocations always exist at the crack tip.
纯弹性断裂总是极少的，因之在加载应力作用下，裂纹顶端总是存在着或大或小的塑性区，存在着裂纹与位错的交互作用。
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