“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	sum of squares for partial regression sum of squares function sum of squares of residues sum of squares within classes sum of submodules sum of subspaces sum of the digits sum of vectors sum operator sum over state sum over states sump sump level control for hydrocyclone feeding process sum-product number sumption sum relation sum rule sum rules sum sequence sum series sum-set sum-set axiom sum spectrum SUMT sum term

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。