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| 凿孔卡片栏; 卡片范围; 〔字段〕穿卡区 | |||
| 卡片字段 | |||
| 卡片信息组; 卡片栏; 穿卡区 | |||
| card field: 5 phrases in 2 subjects |
| Engineering geology | 1 |
| Technology | 4 |
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