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71. | crushed pellets |
| 破碎的球团矿 |
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72. | mobile crushing plant |
| 移动式破碎装置 |
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73. | breakage clause |
| 破碎险条款 |
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74. | rock-breaking mechanics |
| 岩石破碎力学 |
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75. | glass break detector |
| 玻璃破碎检测器 |
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76. | compresso-crushed zone |
| 挤压破碎带 |
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77. | Broken family (home) |
| 破碎型家庭 |
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78. | rock crushing strength |
| 岩石破碎强度 |
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79. | disintegration of ballast |
| 道碴破碎 |
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80. | boulder cracker |
| 岩石破碎器 |
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