Burial depth of boreholes and initial pressure values .
钻孔埋深和初始压力值。
They also maintained boreholes and water pumps in the camps .
他们同时也维护着营地里的水井和水泵。
The huge public reservoir in this regional centre has been empty for months and , according to molu duka sora , local director of the government 's arid lands programme , all the major boreholes in the vast semi-desert area are failing one by one .