Grids meaning

The grids with issues popped up as a layer over the hologram of the existing battles.

"How are the power grids holding up?" he asked, gaze shifting to the screens around them.

When flattened, the sheet is moved away from the working opening of the furnace, and pushed to a system of movable grids, by means of which it is slowly moved along a tunnel, away from a source of heat nearly equal in temperature to that of the flattening chamber.

The sheet thus rolled is roughly trimmed while hot and soft, so as to remove those portions of glass which have been spoilt by immediate contact with the ladle, and the sheet, still soft, is pushed into the open mouth of an annealing tunnel or " lear," down which it is carried by a system of moving grids.

She couldn't read the writing, but she knew the numbers well enough to find the grids.