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| 51. | preventive drug education |
| 禁毒教育 |
|
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| 52. | preventive health care |
| 预防性保健 |
|
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| 53. | a heatstroke preventive |
| 防暑药 |
|
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| 54. | Jiangsu Preventive Medicine |
| 江苏预防医学 |
|
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| 55. | corrosion preventive technology |
| 防腐蚀技术 |
|
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| 56. | Preventive deployment operation |
| 预防性部署行动 |
|
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| 57. | landslip preventive works |
| 山泥倾泻预防工程 |
|
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| 58. | preventive security measures |
| 保安预防措施 |
|
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| 59. | Preventive AIDS programme |
| 预防艾滋病方案 |
|
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| 60. | pellagra-preventive factor |
| 抗糙皮病素 |
|
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