... 间隔津贴：partitioning allowance 间断级配骨料：gap graded aggregate 间断级配：gap grading ...
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gap-graded aggregate [材] 间断级配骨料 ; 间断级配材料
clean gap-graded aggregate 精选间断级配骨料
clean gap graded aggregate 精选集料
Aggregate gap-graded 越级配粒料
gap p graded aggregate 间断级配骨料
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