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衬层
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衬层
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固体火箭推进剂
释
liner
衬层
使推进剂药柱牢固地黏接到绝热层或发动机壳体上的一层黏弹性物质。是固体火箭发动机的重要组成部件之一。
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tourism stakeholder
tourism strategy
tourism system
tourism translation
Tourism Transportation
tourism urbanization
tourism zoning
tourist area sign
Tourist attraction
tourist behavior
tourist bicycle transportation facilities
Tourist Boat
tourist bureau integrated contact center
tourist capacity
Tourist complaint
Tourist-dedicated train
tourist expenditure
tourist family ranches
Tourist Flow
tourist flows
tourist industrial operational monitoring and dispatching center
tourist interpretation system
tourist map
tourist origins
tourist program orginazition
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