奇异线性二次指标最优控制问题LQ问题
singular linear quadratic LQ problem
水问题分析
analysis of water problem
中国科学院水问题联合研究中心
The United Research Centre for Water Problems
CAS
常问问题
frequently asked question
Frequently asked questions
FAQ
态度问题问卷
attitude problem questionnarie
发动机严重的过热问题
severe engine overheating problem