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| 图形阅读器 | |||
| 图表阅读器 | |||
| 读卡台镜; 读卡仪 | |||
| 卡片阅读仪; 海图放大镜; 图表阅读者 | |||
| chart reader: 2 phrases in 1 subject |
| Oil / petroleum | 2 |
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