通过典型调查，在占有翔实资料的基础上，预测公众电报业务的发展趋势。
Through typical investigation, the developing tendency of telegram service is forecasted on the basis of full and accurate data.
通过典型调查，在占有翔实资料的基础上，预测公众电报业务的发展趋势。
Through typical investigation, the developing tendency of telegram service is forecasted on the basis of full and accurate data.
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