insulator [ˈɪnsəleɪtə(r)]

例句:

• It's an insulator used in the inside wall of furnaces.
  来自SA
• Seal patio doors with rubber compression strips and door insulator kits.
  来自SA
• Few substances can equal fur as an insulator.
  作为绝缘体很少有其他材料能与动物皮毛相媲美.
  
• Fat is an excellent insulator against the cold.
  脂肪是极好的抵御寒冷的绝热体。
  
• Dry air is a good insulator, but sea water is not.
  干燥空气是一种好绝缘物, 海水则不是.
  
• I think of underground tanks with ceramic insulator encased in concrete.
  来自SA