“simple progressive system (交通信号)”的概念、定义、翻译、参考文献-科学参考

单词	simple progressive system (交通信号)
释义	simple progressive system (交通信号) 简单行进式系统
随便看	upper slide rest upper slitter upper soll layer upper spacer upper span upper speed cone upper speed course upper spider upper spindle upper spiracel line upper stabilizing fin upper stage upper-stage base upper state upper-state relaxation upper state symbol upper stay plate upper steam cylinder gasket upper steam cylinder jacket band upper steam passage upper stem seal upper story upper strake upper stratosphere upper stratum

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。