大气

• The observer should always make full notes about the atmospheric conditions .
  观测者要对大气条件作详细记录。
• Many of the particles in the atmosphere are in the intermediate region of size .
  大气中的许多粒子均属中等尺度。
• The volcanoes threw millions of tons of ash and smoke into the air .
  这些火山喷射出千百万吨灰烬和烟尘到大气中。
• The atmosphere is often highly irritating to the eyes and to the respiratory tract .
  大气常会刺激眼睛和呼吸系统。
• Both the united states and canada are affected by the same climatic cycles .
  美国和加拿大均受到同一大气环流的影响。
• The most common division of the atmosphere has been by its temperature profile .
  大气最通常的划分是用它的温度廓线。
• Clouds return radiant energy to the surface primarily via the atmospheric window .
  云主要通过大气窗区向地表辐射能量。
• Seeing is the scintillation of image caused by turbulence in the atmosphere .
  宁静度是由大气湍流所引起的象的闪烁反射。
• Convection is the principal agent of heat transfer in the atmosphere and oceans .
  对流是大气和海洋中热传输的主要方式。
• It can at least carry heavy equipment above most of the atmospheric mass .
  它至少能把沉重的仪器携带到大部分大气团之上。