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平板式油位计
Flat oil level gauges
价格:¥0.00
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管式液位计
Tube type level gauges
价格:¥0.00
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潜艇潜望镜用微光电视装置规范
Specification for low light level TV set of submarine periscope
价格:¥0.00
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潜艇对空导航潜望镜头部球面罩装置.试验方法
价格:¥0.00
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潜艇潜望镜通用规范
General specification for submarine periscope
价格:¥0.00
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船用棱镜式双筒望远镜技术条件
Specification of prism binoculars on shipboard
价格:¥0.00
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