• 2021-04-14 问题

    附合水准路线AB,HA=65.376,HB=68.623,实测高差为3.315m,则该路线高差闭合差为( )

    附合水准路线AB,HA=65.376,HB=68.623,实测高差为3.315m,则该路线高差闭合差为( )

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