| 1. | The most challenging field in environmental engineering practice at the present time is the treatment and disposal of industrial wastes .
在现今工程环境实践中，最引人注目的领域大概是工业废物的处理和处置。 |
| 2. | At the present time retainers are being manufactured of phenolic laminates and porous nylons, but other materials ranges are being investigated .
目前，保持架是用酚板和多孔的尼龙制造的，但其他材料也在进行研究中。 |
| 3. | Critic dialogue : heidegger and marx ' s meeting at the present time
海德格尔与马克思在当代的相遇 |
| 4. | How does micro - market affect our products at the present time
现在宏观市场对我们产品影响如何？ |
| 5. | Q : how does micro - market affect our products at the present time
现在宏观市场对我们产品影响如何？ |
| 6. | At the present time , there are two choices for motor control ic
目前，电机控制芯片主要有两种选择。 |
| 7. | Social risks facing our country at the present time : prevention and control
我国目前面临的社会风险及其控制 |
| 8. | At the present time , many stock exchanges have the etf trades
目前,世界许多国家的交易所都有etf挂牌交易。 |
| 9. | . . . at the present time . turn to page 394
翻到394页 |
| 10. | Most of the clinical types hla by serology at the present time
现阶段hla分型，临床上多采用血清学分型方法。 |
