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热固性酚醛树脂
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热固性酚醛树脂
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热固性酚醛树脂
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thermoset phenol-formaldehyde resin
热固性酚醛树脂
在NH4OH、NaOH或Na2CO3等碱性物质的催化下,过量的甲醛与苯酚(其摩尔比大于1)反应生成热固性酚醛树脂。
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barrier-free design
barrier free reconstruction of historical and cultural relics protection buildings
barrier function
barrier function method
barrier iceberg
barrier island
barrier island system
barrier lake
barrier layer
barrierless reation
barrier methods
barrier penetration
barrier polymer
barrier problem
barrier reef
barriers in doctor-patient communication
barriers self-efficacy
barriers to exit
barrier synchronization
Barringer crater
Barrington Moore Jr
Barrington Moore school
Barrington Tops National Park
Barrios de Luna Bridge
Barron's Educational Series, Inc.
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