convection [kənˈvɛkʃən]

例句:

• They are propelled by convection currents in the mantle.
  来自BBC
• Lateral density variations in the mantle result in convection.
  来自BBC
• Conduction, convection, radiation and evaporation are mentioned.
  来自BBC
• These fires create convection funnels, and throw a lot of particles into the upper atmosphere.
  这些火焰造成了对流漏斗，把许多微粒抛向上层大气。
  
• Convection can be of two types: natural convection and forced convection.
  对流可分为两类, 即 自然对流和强制对流.
  
• One of the ways to dissipate perspiration is by convection.
  散发汗水的一种方法是通过对流作用.