21.   Paradoxically, solar sails might also be used to hold an object still.

22.   Plastic barrels were used to hold the ammonium nitrate fertilizer and nitromethane that the government says were used to make the bomb.

23.   Six penny nails were used to hold the plywood.

24.   So if you use tape to hold down a stamp, you can count on the postal service to stick it to you.

25.   Stents are small metal mesh tubes used to hold open cleared arteries.

26.   Such measures could then be used to hold health-care providers accountable for the quality of cancer care.

27.   The computer system also would be used to hold evidence recovered from computer files seized by investigators.

28.   The function of the wiper is to keep an adhesive material used to hold insulation in place from contaminating a pressure-sealing, primary O-ring behind it.

29.   The judge, Shira A. Scheindlin, held that the material witness law cannot be used to hold people indefinitely in criminal investigations.

30.   The move to sell Schneider Worldwide, which makes stents used to hold open arteries, had been long anticipated.