| 1. | Natural gas - guidelines to traceability in analysis
天燃气.分析的溯源性导则 |
| 2. | Many of the victims were waiting in line to buy gas
当时许多遇难者正在排队买天燃气。 |
| 3. | The natural gas is also used as the fuel for the process
天燃气在过程中也被用作燃料。 |
| 4. | Petroleum and natural gas industries - care and use of casing and tubing
石油和天燃气工业.套管和管道的维护和使用 |
| 5. | Lingener natural gas - determination of sulfur compounds - lingener combustion method
天燃气.硫化物的测定.林格聂尔 |
| 6. | Lng liquefied natural gas
液化天燃气 |
| 7. | Another route to steel is from dri to make the iron from iron ore and natural gas
另外一种方法是直接还原，从铁矿中炼铁和天燃气。 |
| 8. | Petroleum and natural gas industries - field inspection of new casing , tubing and plain end drill pipe
石油和天燃气工业.新套管管和平端钻管的现场检验 |
| 9. | Natural gas - calculation of calorific values , density , relative density and wobbe index from composition
天燃气.热值密度相对密度和由化合物推导的沃泊指数的计算 |
| 10. | Standard test method for mercury sampling and measurement in natural gas by atomic absorption spectroscopy
用原子吸收光谱法对天燃气中汞进行取样和测量的标准试验方法 |
