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71. | substitute air waybill |
| 分空运单 |
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72. | substitute royal form |
| 准生殖型 |
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73. | drop-in substitute |
| 随手可得的代用品 |
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74. | A reserve or substitute. |
| 改变或替代 |
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75. | drilling tool substitute |
| 钻具接头 |
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76. | gross substitute matrix |
| 毛代替矩阵 |
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77. | substitute wire net |
| 备用有线通信网 |
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78. | substitute natural gas |
| 代用天然气 |
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79. | sub [subscription; substitute ] |
| 订阅,签署,捐助;代替[ |
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80. | tools to tubing substitute |
| 钻具连接油管的接头 |
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