| 防汛 flood prevention |
| 防汛大军 an army of flood-fighters |
| 防汛指挥部 flood-control headquarters |
| 防污 antifouling |
| 防污染 anti-pollution |
| 防污染标准 anti-pollution standard |
| 防污染系统 a decontamination system |
| 防污染装置 environmental control system |
| 防沙 sand prevention |
| 防沙堤 sand preventing dyke |
| 防沙工程 sediment control structure |
| 防沙林 forest for protection agains... |
| 防治 prevention and cure |
| 防治所 dispensary |
| 防治机构 prophylactico-therapeutic in... |
| 防治污染 prevent and remedy pollution |
| 防治病虫害 the prevention and control o... |
| 防治职业病 prophylaxis and treatment of... |
| 防治血吸虫病 the prevention and cure of s... |
| 防治院 prophylactico-therapeutic ho... |
| 防波堤 breakwater |
| 防洪 control or prevent flood |
| 防洪坝 flood dam |
| 防洪堤 flood bank |
| 防洪工程 flood control works |
