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| iron and steel standard (【技】对钢铁产品及其生产、贸易、检测等有关事项作出统一规定并实施标准化的技术文件。大多数国家都有自己的钢铁标准。我国的钢铁标准分为国家标准、部颁标准和企业标准。) | |||
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钢铁标准 : 8 phrases in 3 subjects |
| Earth sciences | 1 |
| General | 1 |
| Metallurgy | 6 |
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