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In a typical experiment, a sample of 300 mg dry, activated A and 500 mg B were placed in a two-chamber-tube separated by a glass frit and were kept at 300C in a 5 mbar (diffusion pump) static/dynamic vacuum for 12h. Çë½Ì¸÷룬Õâ¶Î»°¸ÃÔõô·Òë£¬ÌØ±ðµØ£¬ºìÉ«±ê¼ÇµÄÄÇÁ½¸ö´Ê£¬ÎÒ²»¶®Äǵ½µ×ÊÇʲô¶«Î÷£¿¶àлÁË£¡ [ Last edited by wdwsnnu on 2008-9-20 at 18:10 ] |
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hljiang
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