The limit of tolerance in column plumbness shall be based on the height from the baseplate to the point being plumbed and shall be measured from the true center line of the column.
栏垂直的公差极限应基于被探测高度的基板点和准确的中线柱的测量。
The limit of tolerance in column plumbness shall be based on the height from the baseplate to the point being plumbed and shall be measured from the true center line of the column.
栏垂直的公差极限应基于被探测高度的基板点和准确的中线柱的测量。
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