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Referring to the previous example, the hole is dimensioned 1.500, which represents a unilateral tolerance.
根据之前的例子，孔的尺寸是1.500，而其公差为单边公差。
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Actuation lengths are dimensioned from centerline of switch upper mounting hole as shown here.
驱动长度尺寸从交换机上安装孔的中心线所示。
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