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本汇编选自1970～1972年间标准处答复各兄弟单位技术问题的公文函电,这些问题对今后工作仍有一定参考价值,特在本刊分期连载。
This compilation of official documents from 1970 to 1972 to answer the technical standards of the fraternal units of correspondence, these issues for the future work is still some reference value, especially in the serialized series.