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[求助]
请问EP里面scale expansion是什么意思
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| In the range 740 cm− 1 to 760 cm− 1 using scale expansion, any absorption band at 758 ± 1 cm− 1 may indicate the presence of tremolite or of chlorite. If the absorption band remains after ignition of the substance to be examined at 850 ± 50 °C for at least 30 min, it indicates the resence of the tremolite. |
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baoshanqiu
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2楼2015-07-16 03:56:46