铁群岛 Iron Islands
高铁群球粒陨石 [地质] H group chondrite
钱铁群 Tie-Qun Qian
低铁群球粒陨石 [地质] L group chondrite
古老的铁群岛国 Kingdom of the Iron Islands
叉叶苏铁复合群 cycas micholitzii complex
石铁陨石主群 Main group pallasites
长苞铁杉群落 Tsuga longibracteata community
豪区的铸铁建筑群 cast-iron architecture
仙湖苏铁种群 Cycas fairylakea population
我喜欢和一个人，或几个特别铁的朋友分享某个特别的时刻，而不是和一群人。
I like to share special occasions with just one person, or a few close friends, rather than a large group of people.
材料的合成过程是这样：首先，他使高温碳氢混合气体和铁催化剂相互作用产生密集的碳纳米管群，然后再用聚合物充填碳纳米管间的空隙。
He created this composite by growing a forest of nanotubes using hot hydrocarbon gases and an iron catalyst, and then filling the space between the tubes with the polymer.
铁谷阿·罗威约诺在向一群急切的孩子卖烟火。他说，多出来的这一天有利于做生意。
Tegua Rohwiyono, who sells fireworks to an eager crowd of children, says the extra day was good for business.
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