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passive optical seeker technique
avia.
被动式光学导引头技术
(technology)
;
无源光学导引头技术
el.
被动光学自动引导头技术
mil., air.def.
无源光学寻的技术
space
被动光学自寻导弹技术
tech.
被动光学寻的器技术
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