 |
| |||
| 強化 (kyōka) | |||
| 焼き入れ (стали, やきいれ) | |||
| 硬化 (термообработка металлов, отверждение смол и т.п., kōka) | |||
| |||
| 硬化 (kōka) | |||
|
упрочнение : 15 phrases in 4 subjects |
| Construction | 6 |
| Metallurgy | 1 |
| Physics | 2 |
| Technology | 6 |
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