observationsn.观察值名词observation的复数形式.observationn.观察；观察力；注意；评论observation technology波浪观测技术observational equation观测方程observation likelihood观测置信度observational research观察研究observation system map观察配系图observation properties观测特性observation efficiency监测效能observation instrument观测仪器Observation conditions观测环境observational geometry观测几何