observationn.观察;观察力;注意;评论
observation pass观测圈
observation room了望间
observation base观测基线
observation deck了望甲板
observation time观测时间
observation tube观察管
observation dome观察装置,了望圆顶
observation tank检油箱
observation door观察孔,看火门
observation pile观测桩
"experimental results that supported the hypothesis"