| http://www.w3.org/ns/prov#value | - FIG. 17 is a flow chart showing tapping in the embodiment, and description is made for the tapping operation with reference to the spindle acceleration/deceleration pattern data groups stored in the spindle acceleration/deceleration pattern data storing section 3 shown in FIG. 14, the tapping program shown in FIG. 15 in which the spindle acceleration/deceleration pattern number for a tap cutting o
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