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stormxuhao: ½ð±Ò+1, »ý¼«»Ø¸´ 2013-07-15 11:19:03
×ÜÓ²¶È-ÔÝʱӲ¶È=ÓÀ¾ÃÓ²¶È
×ÜÓ²¶È total hardness
ÔÝʱӲ¶È temporary hardness Æäʵ¾ÍÊÇ carbonate hardness
ÓÀ¾ÃÓ²¶È permanent hardness Æäʵ¾ÍÊÇ non-carbonate hardness
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2Â¥2013-07-15 10:06:41
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2Â¥: Originally posted by chemiker2010 at 2013-07-15 10:06:41
×ÜÓ²¶È-ÔÝʱӲ¶È=ÓÀ¾ÃÓ²¶È
×ÜÓ²¶È total hardness
ÔÝʱӲ¶È temporary hardness Æäʵ¾ÍÊÇ carbonate hardness
ÓÀ¾ÃÓ²¶È permanent hardness Æäʵ¾ÍÊÇ non-carbonate hardness
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3Â¥2013-07-18 11:18:51
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stormxuhao: ½ð±Ò+1, »ý¼«»Ø¸´ 2013-07-18 13:53:40
ÌìÎè20: ½ð±Ò+20, ¡ï¡ï¡ïºÜÓаïÖú 2013-07-19 17:03:54
ÒýÓûØÌû:
3Â¥: Originally posted by ÌìÎè20 at 2013-07-18 11:18:51
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