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碳上带有正电荷的离子的统称。又称正碳离子、碳𬭩离子。
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main technical standards for railway engineering design
maintenance
maintenance analysis procedure
maintenance analysis procedure, MAP
maintenance and management for green building planting
maintenance and management of airport infrastructure
Maintenance and Management of Irrigation Projects in Ancient China
maintenance and management of plants
maintenance and management of street trees
maintenance and repair in water conservancy project
maintenance and support vehicle
maintenance business outsourcing
maintenance capacity
maintenance center
maintenance charge
maintenance cost
maintenance cost, maintenance charge
maintenance decision
maintenance degree
maintenance dose
maintenance economy of aircraft equipment
maintenance engineering of aircraft materiel
maintenance equipment
maintenance facilities for concentrator equipment
maintenance factor
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