1)viewing,观测，观察2)Observation,观察观测3)obsd observed,观察，观测4)observe and survey,观察与观测5)observation and measurement,观察测量6)Observe and measure,观察测定
用法例句
By the view of space and time in the Relative Theory of Narrow Sense, discuss the two confusing physical concept; observe and survey, and analyse the difference between them.
