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aromatic sextet
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aromatic sextet
Encyclopedia
理学
芳香六隅
释
aromatic sextet
芳香六隅
大多数芳香族化合物的6个π电子的闭合环,其芳香性与此有关。又称芳六重组。
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underglaze red
undergoing professional training at an old-type opera school
undergraduate education
undergraduate education of pratacultural science
Undergraduate Specialty Catalogue of Higher Education Institution
Underground
underground anchor rig
underground antiseepage method
Underground Architecture
underground banks
underground blasting
underground breaking vehicle
underground car loading equipment
underground cavern excavation
underground city in Northern America
underground coal gasification
underground cold storage facility
underground communication
underground complex
underground concrete-gunite truck
underground concrete-mixer truck
underground cultural and educational facilities
underground deep stormwater storage tunnel
underground diaphragm wall
underground diaphragm wall foundation
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