- cordoned observation post system
- 边防 frontier defence
- 观察哨 observation post
- 系统 system
- 观察哨 lookout post
- 地面观察哨 ground observation post
- 对空观察哨 air observer sentry post; antiaircraft observation post; sky lookout
- 防空观察哨 antiaircraft obbservation post
- 海岸观察哨 coast watcher
- 警卫观察哨 security observation post
- 空中观察哨 aeria observation post; air observation post
- 友邻观察哨 adjacent observation post
- 预备观察哨 alternate observation post
- 了望站, 观察哨位 lookout station
- 海岸对空观察哨 cooastal air observation post
- 航路飞行观察哨 en route flight watch
- 边防 frontier defence; border defence◇边防部队 frontier guards; 边防检查条例 frontier inspection regulations; 边防检查站 frontier inspection station; 边防建设 frontier construction; 边防警察 frontier police; 边防军 frontier force; 边防哨(所) frontier sentry; 边防要塞 frontier stronghold; 边防战士 frontier guard; 边防站 frontier station
- 观察棒系统 viewing wand system
- 观察系统 observing system; viewing system
- 系统观察 systematic observation
- 系统观察法 systematic observation method
- 右观察系统 right viewing system
- 国防观念 bewusstsein n.für die landesverteidigung
- 侦察哨 lookout point; scout tower
- 补色观察系统 anaglyphic viewing system
- 观察光学系统 optical viewing system; viewing optical system; viewing optics
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