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81. | electrochemical marking machine |
| 电解刻印机 |
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82. | keep records by notching wood |
| 刻木记事 |
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83. | The Mt. Tai inscription |
| 泰山刻石 |
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84. | chemical scribing |
| 化学刻图 |
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85. | mechanical scribing |
| 机械刻图 |
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86. | quarter repeater |
| 打刻自鸣钟 |
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87. | flower-carving machine |
| 刻花机 |
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88. | diagram carving knife |
| 刻图刀 |
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89. | optical length scale |
| 光学刻尺 |
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90. | hand-cut beer mug |
| 刻花啤酒杯 |
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