那个北京老太太讲到她的苦处了没有。前天听了在讲她得到前辈的帮助，用俄文的资料做成功了提纯试验。

来源: 烹小闲于 2025-01-06 14:42:33 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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