“projective hierarchy”的概念、定义、翻译、参考文献-科学参考

单词	projective hierarchy
释义	projective hierarchy Mathematics projective hierarchy射影分层
随便看	laser acupuncture laser acupuncture anesthesia laser aligner laser aligning laser altimeter laser altimetry satellite，LAS laser amplifier laser angioplasty laser annealing laser annealing process laser application laser-arc hybrid welding laser array laser assisted grinding laser assisted injection laser-assisted injection laser assisted subepithelial keratomileusis laser-assisted subepithelial keratomileusis laser-assisted subepithelial keratomileusis, LASEK laser based length standard laser-based particle analyzer laser-based remote sensing payload laser beam laser beam combining technology laser beam cutting

科学参考收录了854744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。