“graded bedding”的概念、定义、翻译、参考文献-科学参考

单词	graded bedding
释义	graded bedding [¦grād·ǝd `bed·iŋ] ^GEOLOGY A stratification in which each stratum displays a gradation in the size of grains from coarse below to fine above.
随便看	positive-displacement meter positive-displacement pump positive draft positive drive belt positive electrode positive electron positive element positive estuary positive feedback positive gene control positive glow positive-grid oscillator positive image positive interference positive ion positive-ion sheath positive landform positive lens positive linear functional positive logic positive meniscus lens positive mirror positive modulation positive mold positive motion

科学参考收录了103327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。