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杂环香料
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杂环香料
Encyclopedia
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杂环香料
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heterocyclic perfume
杂环香料
用于调配香精的杂环化合物。杂环化合物主要以五元、六元环系或稠环系为主,通常含有一个或多个杂原子(O、N或S)。
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first adjoint space
first aid for accidents at the construction site
first aid medicine for rocket propellant poisoning
first antenna
First Anthology of Books from Collectanea
first appearance datum
first approximation
first approximation theory
first-ascent giant branch
first author counting
first axiom of countability
First Barbary War, Second Barbary War
first Bianchi identity
First Blood
First booming of domestic newspaper
first boundary condition
first boundary value problem
first Brillouin zone
first Brocard Cevian triangle
first Brocard circle
first Brocard point
first Brocard triangle
First Bulgarian Kingdom
first capacity fading
first category
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