last observation carried forward
【建筑】观测窗（观察窗）
observation window (sight glass)
暂无补充释义。
相关词条
observation condition
empathic learning, observation learning
observation
time study observation sheet
method by series【测】;method of direction observation【测】
Tiros【电】视 航;television and infrared observation satellite【电】视 航
observation ward