40Ar-39Ar快中子活化法年龄
40 Ar 39 Ar fast neutron activation dating
脉冲中子-中子测井仪
pulsed netron-netron logger
中子—中子反应
neutron-neutron re-action
中子中子碰撞
collision between neutrons
中子-中子散射
neutron neutron scattering
中子—中子甄别
Neutron-neutron discrimination
热中子中毒
thermal neutron poisoning
poisoning
thermal-neutron