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英德
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图片
维基
百科
free atmosphere
自由大气
自由大气层
free atmosphere
free atom
free auxin
free available chlorine
free available chlori...
free baggage allowance
free balance
free balloon
free band
free banking principle
free banking system
free bar
free base
free beam
free bearer
free bearing
free beaten stock
free beating
free bed
free bench
free bend
free bend ductility
free bend test
free bilirubin
free bitumen
free black
free blade
free block
free block control block
free block control table
free block queue element
free blowing
free board during max...
free boarder
free body
free body balance equ...
free body diagram
free bollard
free bone fragment
free Boolean algebra
free border
free boundary
free boundary electro...
free boundary problem
free box wrench
free breakage
free bulkhead
free burden
free burning coal
free burning mixture
free business
free call
free callisthenic
free camber
free cannon pinion
free capacitance
free capital
free capital goods
free carbide
free carbon
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