广电计量检测集团股份有限公司
![1H-Cyclohepta[a]naphthalene-3,9-diol,2,3,4,4a,5,6,8,9,10,11,11a,11b-dodecahydro-8-(hydroxymethyl)-4, 乐美天](http://i5.antpedia.com/cbook/attachments/product/6806/c393e65291c7dc76034ba638c36633fc.png!w300x237.png)
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1H-Cyclohepta[a]naphthalene-3,9-diol,2,3,4,4a,5,6,8,9,10,11,11a,11b-dodecahydro-8-(hydroxymethyl)-4, 乐美天
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1H-Cyclohepta[a]naphthalene-3,9-diol,2,3,4,4a,5,6,8,9,10,11,11a,11b-dodecahydro-8-(hydroxymethyl)-4, 乐美天