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示位标
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水运交通指示
释
position indicating mark
示位标
设在湖泊、水库、水网地区或其他宽阔水域与重要航道附近,标示岛屿、浅滩、礁石及通航河口等特定位置,供船舶定位或确定航向的水上助航标志,又称灯塔。在内河航道可以为各种形状的塔形体。塔身外涂有显明的颜色,便于船舶识别。
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audible
audible advertisement
audible area
audible frequency
audible sound
audience
audience age
audience development
audience education
audience effect
audience evaluation
audience gender
Audience Hall of Qin and Han Dynasty
audience nomination
audience orientation
audience preferences
audience profession
audience psychology
audience rating survey
audience residence
audience rights
audience satisfaction
audiences feedback of radio and TV programs
audience's focus of attention on the stage
audience social classification theory
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