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聚丙烯催化剂
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聚丙烯催化剂
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聚丙烯催化剂
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polypropylene catalyst
聚丙烯催化剂
丙烯聚合催化剂是聚丙烯生产技术的核心。研究开发的聚丙烯催化剂主要有齐格勒-纳塔(Ziegler-Natta,Z-N)催化剂、茂金属催化剂和非茂金属催化剂等。
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grassland type
grassland type of south American
grassland UAV monitoring
grassland use right
grassland usufructuary right
grassland utilization
grassland waders
grassland water balance
grassland water consumption
grassland water cycle
grassland water resources
grassland water resources assessment
grassland water saving irrigation
grassland weeds
grassland wildlife
grassland with abundant water resource
grassleaf sweetflag rhizome
grass-livestock interaction
grass-livestock interface
grass machinery
Grassmann
Grassmann algebra
Grassmann coordinate
Grassmann coordinates
Grassmannian
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