| 1. | Provision of a rat - free environment for tourist spots 提供没有鼠患问题的旅游点 |
| 2. | Discussion on construction an obstacle - free environment 城市无障碍环境建设探讨 |
| 3. | A mosquito - free environment will prevent disease 这样就不会滋生蚊虫传播疾病 |
| 4. | Create a smoke - free environment for work , rest and play 建立无烟的工作休息及娱乐环境。 |
| 5. | Create a smoke - free environment for work , rest and play 建立无烟的工作、休息及娱乐环境。 |
| 6. | Third open day to promote smoke - free environment in restaurants 第三次开放日推广食肆无烟环境 |
| 7. | Second open day to promote smoke - free environment in restaurants 第二次开放日推广食肆无烟环境 |
| 8. | A switch provides a collision - free environment on a lan 一个开关为一个区域网络提供无碰撞环境。 |
| 9. | Open day to promote smoke - free environment in restaurants with photos 开放日推广食肆无烟环境附图 |
| 10. | The laser should be operated in a dry , clean and dust - free environment 应在干燥,洁净的环境下使用激光器。 |