| 1. | Many variations of these units and many sizes are in operation at present .
现在运转的有很多式样和不同大小的装置。 |
| 2. | This eminently reasonable measure, which is in operation in most continental countries, met with a chorus of disapproval in our country .
这种十分合理的措施正在大多数大陆国家中实施，却在我国遭到了异口同声的反对。 |
| 3. | B they must have been in operation for a period of at least one year
(二)开办至少一年； |
| 4. | The hook rotates at a high speed while the machine is in operation
缝纫机操作中，旋梭高速地旋转。 |
| 5. | Ensure that the grille is in place while the machinery is in operation
机器运转时一定要放好安全网罩 |
| 6. | Center of nanoscience and nanotechnology of cas is in operation
中国科学院纳米科技中心进入实质性运作阶段 |
| 7. | They must have been in operation for a period of at least one year
须经本会承认其非牟利团体；开办至少一年； |
| 8. | Gas supply : the gas west - east transfer project has been in operation
供气： “西气东输”的天然气漯河已经开通。 |
| 9. | The elevator is in operation
电梯正在运行中。 |
