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2021/07/29 17:58 <dir> benzene
2001/09/26 14:28 2065 buta-01-1.html
2001/09/26 13:52 530583 buta-01-1.swf
2021/07/29 17:58 <dir> butadiene
2021/07/29 17:58 <dir> ethylene1
2021/07/29 17:58 <dir> ethylene2
2021/07/29 17:58 <dir> H2
2001/09/26 14:28 1896 H2-01.html
2001/09/26 13:52 639383 H2-01.SWF
2021/07/29 17:58 <dir> yakkou1
2021/07/29 17:58 <dir> yakkou2