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۵:ַǾ ûй̶۵, һΪΪ500~750
е:1000
ܶ:2.4~2.76g/cm3
άΪǿϵIJǿӦʱǿǿȴǿڱ״̬6.36.9 g/dʪ״̬5.45.8 g/dܶ2.54g/cm3Ժã¶ȴ300ʱǿûӰ졣ĵԵԣǸĵԵϣҲھȲϺͷβϡһֻŨŨḯʴ
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