They drill down to the shale, then go sideways and inject high-pressure water, sand or other material into the rock.

VOA: special.2009.10.23

Other controls include turning over the soil, pulling the weeds or covering them with mulch made of wood, garden waste or other material.

VOA: special.2010.08.10

Other controls include turning over the soil, pulling the weeds by hand or covering them with mulch made from wood, garden waste or other material.

VOA: special.2009.05.26

At the time, the plant was used as packing material that protected other orchid plants arriving from Brazil.

VOA: special.2010.04.06

A hoop house is basically a metal frame covered with plastic or other all-weather material.

VOA: special.2009.12.22

It covers more space with less material than any other building ever designed.

VOA: special.2010.05.30

As with every float, each square centimeter of space must be covered with flowers or other organic material, including moss,seeds, bark and plant fiber.

VOA: standard.2009.12.30