“photoelectric shaft speed monitoring device”的概念、定义、翻译、参考文献-科学参考

单词	photoelectric shaft speed monitoring device
释义	photoelectric shaft speed monitoring device Encyclopedia 工学航空交通检测释 photoelectric shaft speed monitoring device光电式轴转速监测装置利用光学原理对轴转速进行测量的装置。可分为投射式和反射式两类。
随便看	population mean Population Mechanical Change population migration population migration theories population model population moment population natural dynamics population of determinism population of labour force population of stars population opportunity window population parameter population persistence population pharmacokinetics，PPK population planning population policy population pressure population process population protected mode of medicinal resources Population pyramid Population quantity population random distribution population recruitment Population Registers population regulation

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。