“底部地层”概念、定义、翻译-科学时代

单词	底部地层
释义	矿业工程技术词汇手册底部地层 understratum
随便看	pyocyst pyoderma pyofluorescein pyofluorescein pyogen pyogenesis pyohemia pyohemothorax pyohydronephrosis pyomelanin pyometritis pyomyositis pyonephritis pyonephrolithiasis pyonephrosis pyo-ovarium pyopericardium pyoperitoneum pyophthalmitis pyophysometra pyopneumocholecystitis pyopneumohepatitis pyopneumopericardium pyopneumoperitonitis pyopneumothorax

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。