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| 51. | toilet paper dispenser |
| 卫生纸卡 |
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| 52. | sanitary regulation |
| 卫生条例 |
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| 53. | Sanitary Section |
| 卫生组 |
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| 54. | elementary knowledge of hygiene and sanitation |
| 卫生常识 |
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| 55. | sanitary wrapping paper |
| 卫生包装纸 |
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| 56. | atmospheric hygiene |
| 大气卫生 |
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| 57. | sanitizing agent |
| 卫生消毒剂 |
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| 58. | toilet paper fixture |
| 卫生纸盒 |
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| 59. | conservancy of sanitation |
| 卫生管理 |
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| 60. | airfield hygiene |
| 机场卫生 |
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