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41. | long - span construction |
| 大跨度结构建筑 |
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42. | span of control |
| 控制变化范围;控制范围;控制跨度 |
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43. | span of management |
| 管理幅度 |
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44. | floating link span |
| 浮动栈桥 |
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45. | syllable span test |
| 音节广度测验 |
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46. | span of discrimination |
| 辨别范围 |
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47. | suspended span beam |
| 悬跨梁 |
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48. | span of attention |
| 注意广度 |
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49. | span calibration gas |
| 量程校准气 |
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50. | multiple span structure |
| 多跨构造物 |
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