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| 铁头; 硬渣; 不纯锡铁化合物; 硬质巴比合金; 大卵石; 硬砂岩瘤; 岩砰硐; 难熔的矿石 | |||
| 硬质巴比合金90Sn, 8Sb,余量铜; 硬头锡锑铜合金; 富锡渣 | |||
| 草丛丘; 泥炭丘 | |||
| 硬头 | |||
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| "鲂鱼" (号潜艇(美)) | |||
| hardhead: 3 phrases in 3 subjects |
| Desert science | 1 |
| Ichthyology | 1 |
| Technology | 1 |
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