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| Gb | Eng | Viet |
|---|---|---|
| 把铝和其他金属混合，科学家们能够制造出各种合金，其中一些具有钢一样的强度，但其重量只是钢的三分之一。 | By mixing aluminium with other metals, scientists have been able to produce a variety of alloys, some of which have the strength of steel but weigh only one third as much. |  → |