The recording of neutron bombardment by a neutron–neutron sonde being raised through a borehole. The neutron log is used to estimate formation porosity and is presented on a scale calibrated in limestone porosity units.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。