‰·ò–ĵ –€ĉd(Maka)
’n@–ĵ ĵ‘OŒSĵ‘O’Ĵ
[“xi‚j -1
‰·@“xiŽj 25
—Ĵ@—Ê(l/min) 1.3900
pH 2.8000
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Geological Survey of Japan, AIST, 2004