| 1. | Quality appraising standard for air - heating furnace
热风炉质量评价规范 |
| 2. | Standard for safety for waste oil - burning air - heating appliances
废油燃烧空气加热设施安全标准 |
| 3. | Waste oil - burning air - heating appliances
废油燃烧取暖设备 |
| 4. | Localized air supply for air - heating
在一定高度上 |
| 5. | Standard specification for rubber seals used in air - heat transport of solar energy systems
太阳能系统的热空气传递用橡胶密封件的标准规范 |
| 6. | Air - heating systems circulate air through ducts to and from an air heating collector ( figure 1 )
空气加热系统使空气循环，通过通往或是通出空气加热收集器的管道（见图一） 。 |
| 7. | Heat exchangers . forced circulation air - cooling and air - heating coils . test procedures for establishing the performance
热交换器.强制循环空气冷却和空气加热盘管.确定性能的试验程序 |
| 8. | Heat exchangers - forced circulation air - cooling and air - heating coils - test procedures for establishing the performance
热交换器.强制循环空气冷却和空气加热盘管.性能确定的试验规程 |
| 9. | Heat exchangers - forced circulation air - cooling and air - heating coils - test procedures for establishing the performance
热交换器.强制循环空气冷却器和空气加热盘管.性能确定的试验程序 |
| 10. | The first geologic reason for degeneration of the eco - environment in the headwater area of the yellow river is that the increase of the recent geologic function caused desertification and grasslands resource decreased and underside changed , destroied the balance of water - air - heat in the area ; the second is that the water environment changes by the degradation and atrophy of frozen earth cause multilayer and synthesis cause of formation degeneration of the eco - environment ; the third is that the man and rats function accelerated degeneration of the eco - environment in the headwater area of the yellow river
摘要黄河源区生态环境恶化的地质原因之一是现代地质作用增强，形成以荒漠化为主的草地资源退化与下垫面改变，地区水气热平衡破坏；二是因冻土退化、萎缩，引起水环境变异，导致多层面与综合成因的生态环境恶化；三是人为及鼠类活动对源区生态环境恶化起著推波助澜的作用。 |
