“记数法变量”的概念、定义、翻译、参考文献-科学参考

单词	记数法变量
释义	记数法变量 notation variable
随便看	ratchet-feed ratchet feeder ratchet feed mechanism ratchet gear ratchet gearing ratchet gear wheel ratchet handle ratchet handle spanner ratchet hob ratchet hoist ratcheting ratchet jack ratchet lever ratchet lever jack ratchet lift ratchet magnetic pulse oscillator ratchet nut ratchet pawl ratchet pin ratchet punch ratchet rack ratchet relay ratchet reversing gear ratchet screwdriver ratchet screwdriver with wooden handle

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。