当发表的数据不完整时联系作者。
如果锥度尺寸数据不完整，显示功能将有助于操作员计算角度。
If taper dimension data are not complete, the display will help the operator to calculate the angles.
这次研究由于数据不完整而受到批评，但它激发了进一步的研究。
The study was criticized for incompleteness of data but It'stimulated further research.
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