The doctor goes in through the cervix and places tiny metal coils inside the fallopian tubes.

Down the hall is a tiny room with a single bed stripped to its metal coils.

The office buildings were sitting on monstrous metal coils, ready to hold steady under nuclear blasts.

Gradually, the metal coil on the slide forced itself away.

I like the kind with the spiral on top so my hand doesn't rub up against the metal coil by the left margin.

The working part of a filament lamp is a metal coil which glows white hot.

Steam hissed around the metal coils for a few seconds, then slowly subsided.

Similar devices, though much larger, are used to pick up metal coils.

The most effective current therapy is embolization with detachable metal coils.

Now I am using metal coils to contain the field, but they are dispensable in theory.