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81. | difficult terrain for cycling |
| 骑自行车难以行走的地带 |
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82. | three-dimensional terrain simulation |
| 三维地景仿真 |
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83. | ETC (Earth Terrain Camera) |
| 地球地形摄影机 |
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84. | rough terrain self-propelled crane |
| 越野自动起重机 |
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85. | degree of terrain irregularity |
| 地形崎岖度 |
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86. | Tercom (terrain contour matching) |
| 地形匹配 |
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87. | terrain contour matching guidance |
| 地形等高线匹配制导 |
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88. | aerial profiling of terrain system |
| 航空地层剖面测定系统 |
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89. | an all-terrain vehicle |
| 全地形式的车. |
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90. | antenna height above average terrain |
| 平均地表面上天线高度 |
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