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| 71. | covering material |
| 被覆物 |
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| 72. | covering device |
| 覆土器 |
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| 73. | covering dimension |
| 覆盖维数 |
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| 74. | covering operation |
| 覆盖运算 |
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| 75. | covering harrow |
| 复土耙 |
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| 76. | covering manifold |
| 覆盖廖 |
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| 77. | covering homomorphism |
| 覆盖同态 |
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| 78. | covering mortar |
| 覆盖灰浆 |
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| 79. | covering homotopy |
| 覆盖同伦 |
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| 80. | covering roller |
| 覆土压土轮 |
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