“zero year”的概念、定义、翻译、参考文献-科学参考

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。

单词	zero year
释义	zero year Astronomy zero year零黑子年
随便看	boundary load switch protection boundary lubrication boundary manifold boundary mapping boundary measure boundary measurements Boundary Moat of Jin Dynasty boundary morphism boundary network flow boundary node boundary node method boundary observation boundary of a chain boundary of a complex boundary of a convex cell boundary of a convex polytope boundary of a domain boundary of a function algebra boundary of a half-plane boundary of a half-space boundary of a manifold boundary of an algebraic variety boundary of a polygon boundary of a set boundary of a simplex