thermals ['θɜ:məlz]

例句:

• Birds use thermals to lift them through the air.
  鸟类利用上升热气流升入空中。
  
• Have you got your thermals on?
  你穿保暖衣了吗？
  
• Are the thermals picking up any signs of life?
  热量探测器有没有检测到生命迹象?
  
• Nearly all experienced hang glider pilots have experienced bullet thermals.
  来自SA
• Other things to pack are a harness, bottled oxygen, thermals, gloves and several pairs of socks.
  来自BBC
• Taking advantage of thermals that move air up and down them through out most of the day,and night.
  来自SA