与"periscopic concave lens"相近的词条

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• perisclerium
• periscope
• periscopia
• periscopic
• periscopic concave
• periscopic concave lens
• periscopic convex lens
• periscopic lens
• periscopic spectacles
• periscopy
• perish
• perishability
• perishable
• perishable commodity
• perishable food
• perished

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