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| 61. | minute adjustment |
| 精密调节 |
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| 62. | Precision Milling |
| 精密铣削 |
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| 63. | precision optical system |
| 精密光学系统 |
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| 64. | precise traverse |
| 精密导线 |
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| 65. | precision regulator |
| 精密调节器 |
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| 66. | precision voltmeter |
| 精密电压计 |
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| 67. | precision seamless steel tube |
| 精密无缝钢管 |
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| 68. | precise leveling |
| 精密水准测量 |
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| 69. | precision test paper |
| 精密试纸 |
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| 70. | precision attenuator |
| 精密衰减器 |
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