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鈉鉀合金是兩種活潑金屬的合金。。。也是室溫下為液態的合金
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您好，阿斯蘭侃吧歡迎您的到來~親愛的用戶：歡迎來到鈉鉀合金吧，阿斯蘭侃吧歡迎您的到來~
請先閱讀我們的社區準則：http://www.arslanbar.com/documents/eula/ 以及版權聲明：h... |
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