| 1. | Assessment of nonconforming levels in parts per million 百万分之几ppm不合格指标的估价 |
| 2. | Assessment of outgoing nonconforming levels in parts per million 百万分之几ppm输出不合格等级的估价 |
| 3. | Assessment of average outgoing quality levels in parts per million 百万分之几ppm平均出厂质量指标的评估 |
| 4. | Parts per million not exceeding 含量不得超逾 |
| 5. | Part per million abbr . ppm 兆北率百万分之几 |
| 6. | 2 , 000 parts per million 每百万2000单位 |
| 7. | Parts per million carbon ppm 百万分率碳 |
| 8. | Ppm - parts per million 百万分之一 |
| 9. | Ppm parts per million 百万分之一 |
| 10. | As for drinking water , 1mg l mini gram per liter 1 ppm part per million 对饮用水而言, 1mg l毫克每公升1 ppm百万分之一含量。 |