| 1. | There may be a need for retarding growth chemically to keep trees within bounds .
可能需要用化学剂抑制生长，使树冠保持在一定的范围内。 |
| 2. | Research advances of chemicals for oil production
采油用化学剂的研究进展 |
| 3. | Others include alcohol , drugs , chemicals and hereditary diseases
其他包括酒精、药物、化学剂和遗传病等。 |
| 4. | Combined technique of chemicals huff and puff with water - shutoff in oil well
化学剂吞吐与油井堵水的结合技术 |
| 5. | Block - removing technus using high pressure water jets combined with acidization
高压水射流与化学剂复合解堵工艺的机理及应用 |
| 6. | Non - chemical means will be considered before adopting the use of pesticides
在采用除害剂之前，会先考虑使用不需要化学剂的方法。 |
| 7. | The laboratory study on displacement efficiency with microbial and chemical system
微生物与化学剂体系结合提高驱油效率的实验研究 |
| 8. | Non - chemical agents will be considered before adopting the use of pesticides
在采用除害剂之前，会先考虑使用不需要化学剂的方法。 |
| 9. | Non - chemical means will be considered before adopting the use of pesticides
在采用除害剂之前，会先考虑使用不需要化学剂的方法。 |
| 10. | Non - chemical agents will be considered before adopting the use of pesticides
在采用除害剂之前，会先考虑使用不需要化学剂的方法。 |
