| 1. | Condensation trails contrails produced by aircraft
飞机航行时所产生的凝结尾迹。 |
| 2. | Scientists have long known that airplane condensation trails act to both cool and heat the atmosphere
科学家早已知道，飞机后方的凝结尾对大气同时具有冷却与加温的效果。 |
| 3. | This evidence supported the hypothesis that contrails reduce the temperature range by cooling the atmosphere during the day and heating it at night
这个证据支持凝结尾会缩小日夜温差的说法，白天会使温度下降，夜间则使温度上升。 |
| 4. | The puffy trails cool the upper atmosphere by reflecting sunlight away and warm the lower atmosphere by trapping outgoing heat
膨大的凝结尾会把阳光反射出去，使上方的大气层冷却，又会阻挡下面散发上来的热，而使下方的大气层变得温暖。 |
| 5. | Climatologists think that contrails exert a net warming influence , perhaps as large as 2 percent of the global warming resulting from greenhouse gases
气候学家认为，结算后凝结尾会使大气温度上升，也许最高可达温室气体导致的全球暖化的2 % 。 |
| 6. | Major features appearing on the image include contrails light blue , deep clouds white , high clouds light blue and fog mist low clouds red - smooth in texture
图中可见凝结尾迹浅蓝色，厚云白色，高层云浅蓝色及雾低层云红色，质感较柔和。 |
| 7. | Major features appearing on the image include contrails ( light blue ) , deep clouds ( white ) , high clouds ( light blue ) and fogmistlow clouds ( red - smooth in texture )
图中可见凝结尾迹(浅蓝色) ，厚云(白色) ，高层云(浅蓝色)及雾低层云(红色，质感较柔和) 。 |
| 8. | Formed by jet engines ' hot exhaust , contrails act as thin cloud barriers that not only reflect sunlight but also prevent the earth ' s heat from escaping into space
凝结尾是飞机引擎向后排出的热气所造成，如同一层薄云屏障，不仅会反射阳光，也会阻止地球的热散失到太空中。 |
| 9. | Contrails , which develop when water vapor released in aircraft exhaust fumes spontaneously turns to ice , can form at altitudes and humidities that do not support normal clouds
飞机的凝结尾是引擎废气中的水蒸气结成的冰，那是在高度与湿度都不适合形成云的地方自然发生的。 |
| 10. | Condensation trails contrails are formed high in the sky where water vapour from aircraft exhaust condenses in the surrounding cold air , producing water droplets and or ice crystals
飞机在高空航行时排出水气，水气被周围的冷空气冷凝下来，结成水点或冰晶，在高空留下了一条痕迹，称为凝结尾迹。 |
