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| 81. | two-span railway bridge |
| 两孔铁路桥 |
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| 82. | long span steel framing |
| 大跨钢构架 |
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| 83. | organizational span of control |
| 控制的组织幅度 |
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| 84. | span of visual discrimination |
| 视觉辨别范围 |
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| 85. | Life expectancy; Life span |
| 预期寿命 |
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| 86. | immediate memory span test |
| 即时记忆广度测验 |
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| 87. | life span of oil |
| 油使用期限 |
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| 88. | wing span (of aircraft) |
| 翼长 |
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| 89. | Large-Span House structure |
| 大跨度房屋结构 |
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| 90. | Railway bridge span series |
| GB/T904-1994铁路桥梁跨度系列 |
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