32/26规格硅芯管的壁厚及允差分别为( )。A.2.0mm,(-0.2mm,+

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问题 32/26规格硅芯管的壁厚及允差分别为( )。A.2.0mm,(-0.2mm,+0.2mm)B.2.5mm,(-0.2mm,+0.2mm)C.2.7mm,(+0.35mm,0)D.3.0mm,(+0.35mm,0)

选项 A.2.0mm,(-0.2mm,+0.2mm)
B.2.5mm,(-0.2mm,+0.2mm)
C.2.7mm,(+0.35mm,0)
D.3.0mm,(+0.35mm,0)

答案 B

解析 表3-7-1:32/26规格硅芯管的壁厚为2.5mm,允差为(+0.2,-0.2)mm。
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