“length of frost free period”的概念、定义、翻译、参考文献-科学参考

单词	length of frost free period
释义	length of frost free period 无霜期间
随便看	shielded area shielded box shielded carbon arc welding shielded cask shielded cathode shielded counter shielded electron gun shielded facility shielded factor shielded flame shielded flask shielded flexible cable shielded from interference shielded galvanometer shielded joint shielded line shielded loop shielded macro camera shielded magneto shielded measuring instrument shielded metal arc welding shielded metal-arc welding shielded metal (manual electric) arc welding shielded nucleus shielded nuclide

科学参考收录了1248194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。