| 摘要 |
A portable periscope (31) comprises a periscope head (58, 60), a periscope barrel (34) and a periscope elbow (64, 66). The periscope barrel is made up of a plurality of segments (36, 38, 40) that can be disassembled for transport and assembled for use. The segments are either separated from each other or are joined by hinges, making a foldable articulated periscope.
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