optimal ray最优射线optimaladj.最理想的；最佳的optimal harvesting rate最优捕捞强度optimal investment rate优化投资率optimal control systems最优控制系统Optimal switching angle最优开关角optimal file allocation[计] 最佳文件分配optimal sensor location最优传感器布置optimal bands selection最佳波段选择optimal matching method最优匹配法optimal passive control被动优化控制optimal hiding strategy最优隐藏策略