| 1. | Scientists are not certain why the oxygen level dropped .
科学家们现在还不能断定为什么含氧量会下降。 |
| 2. | Methods based on electrometric measurements involving a galvanic cell may be utilized to determine the oxygen content of a gas .
以电测法（包括原电池）为基础的方法可以用来测定气体的含氧量。 |
| 3. | It adapts itself to water with low oxygen content
它能适应含氧量少的水。 |
| 4. | Standard test method for determination of oxygen in tantalum powder
钽粉末中含氧量测定的标准试验方法 |
| 5. | Hego heated exhaust gas oxygen sensor
加热尾气含氧量传感器 |
| 6. | Thermo - magnetic oxygen content sender
热磁式含氧量发送器 |
| 7. | This helps in the oxygenation of impure blood and the normalization of the colon
它将有助于提高血液中的含氧量和使肠管恢复正常。 |
| 8. | 1 . activeate water molecule the amount of oxygen in skin 2 . improve the metabolism and the circulatory systerm
1 .令水分子活性化提高肌肤的含氧量 |
| 9. | The structure and oxygen content control of nb type entire automatic nitrogen protection brazing furnance
式全自动氮气保护钎焊炉的结构及含氧量的控制 |
| 10. | Test method for oxygen content using a 14 - mev neutron activation and direct - counting technique
使用14兆电子伏特的中子活化和直接计数技术测定含氧量的试验方法 |
