Rare earth noctilucent fibers are a kind of new materials, provided with special function.

稀土夜光纤维是一种具有特殊功能的新型材料。

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Rare earth noctilucent fibers are a kind of new materials, provided with special function.

稀土夜光纤维是一种具有特殊功能的新型材料。

youdao