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| 垂直扶梯直梯 | |||
| 竖梯 | |||
| 直立式梯子; 立式梯子 | |||
| 直梯障碍 | |||
| 直爬梯; 直立梯; 垂直梯 | |||
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vertical ladder : 5 phrases in 3 subjects |
| Bridge construction | 1 |
| Technology | 3 |
| Wind Energy | 1 |
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