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lutetium and yttrium contents in europium metal and oxide (Chinese: 稀土金属及其氧化物中稀土杂质化学分析方法 第6部分：铕中镧、铈、镨、钕、钐、钆、铽、镝、钬、铒、铥、镱、镥和钇量的测定)
English versions: GB/T 10159-2023
GB/T 45256-2025_Chinese: Press and publication - Knowledge service - Construction process of knowledge ontology (Chinese: 新闻出版 知识服务 知识本体构建流程)
English versions: GB/T 44992-2024
English versions: GB/T 45604-2025
GB/T 7939.1-2024 Chinese PDF (GB/T7939.1-2024) GB/T 29246-2023 lutetium and yttrium contents inGB T 7939. 1 2024_Chinese: Connections for hydraulic fluid power Test methods Part 1: Connectors (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 7939. 1 2024
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