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关注:1
2013-05-23 12:21
求翻译:In 1950, it was not understood that the fibers, when exposed in the Bunsen burner flame, had been pyrolyzed to carbon fiber.是什么意思?![]() ![]() In 1950, it was not understood that the fibers, when exposed in the Bunsen burner flame, had been pyrolyzed to carbon fiber.
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