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10Â¥2013-05-10 16:37:08
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3Â¥2013-05-09 22:50:38
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demi-sulphate is meant the sulphate containing a half mole of sulphuric acid per mole of melamine. (C.sub.3 H.sub.6 N.sub.6.1/2H.sub.2 SO.sub.4) Ò²¾ÍÊÇ£ºÃ¿Ä¦¶ûÈý¾ÛÇè°·º¬ 0.5Ħ¶ûÁòËá »¯Ñ§¹¦µ×²»Ôúʵ£¬Ã»Àí½â¡£Òò´ËҲû°ÑÎÕÊǶԵġ£Ï£ÍûÓÐÈËÄܽâÊÍ¡£ ÕâÀïÅ×שÒýÓñÁË¡£ |
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5Â¥2013-05-10 11:36:58







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