boreholes造句

They also maintained boreholes and water pumps in the camps.

In many countries, drinking water is obtained from groundwater sources such as springs, Wells and boreholes.

The above stated method was successfully applied to 23 large diameter gas drainage boreholes.

It is made up of 86 boreholes, 2.4 kilometres (1.5 miles) deep, each containing a string of 60 detectors.

After that, rescuers were able to dig boreholes that became like umbilical chords to the trapped men.

Test results of surface gas extraction technology from boreholes in the goaf in Zhangbei Coal Mine, Huainan Mining Group are introduced in the paper.

It's hard to imagine the outside world providing free or subsidized fertilizer and boreholes to every African village that needs them.

We are restricted on the amount of boreholes we can sink and the number of hours we are allowed to pump per day by the government environmental agency.

Gas production per unit length increases with the increase of branchlength and the angle between main and branch boreholes. However, it declines as the number of branches increase.

By 2008, the partners expect to have provided Ghana, Mali and Niger with a minimum of 825 new water boreholes, 100 alternative water resources and 9,000 more latrines, reaching more than onehalf million people.