“群组调查研究”的概念、定义、翻译、参考文献-科学参考

单词	群组调查研究
释义	群组调查研究 group study
随便看	position control position control cam position control lever position control lever assembly position control loop position control servomechanism position control signal position control system position correction position correction grid position data position defilade position detection position detector position deviation position dialing position doubtful positioned abstract positioned plug valve positioned weld positioned weld(welding) position effect positioner position error position-error detector

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。