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讨论了包角系数Ｋα和楔合系数Ｋｒ的计算公式及其关系；指出ＪＢ／Ｔ５９８３－９２中给出的Ｋα数据所存在的问题，给出Ｋα和Ｋｒ的实用计算公式及计算用表。
The calculation formulas and their relations of the inclusion angle coefficient Kα and the wedging coefficient Kr are discussed. The problems existing in the Kα data given in JB / T5983-92 are pointed out, and the practical calculation formulas and calculation tables of Kα and Kr are given.