To measure the straightness, erect the workpiece on the measuring block placed on the surface plate.

测量直线度时，将工件竖放在放置于平板上的测量块上。

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To measure the straightness, erect the workpiece on the measuring block placed on the surface plate.

测量直线度时，将工件竖放在放置于平板上的测量块上。

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