The isolated and anatomically_preserved lepidodendralean leaf cushions were described from coal balls in Wangjiazhai Formation (upper Upper Permian) in western Guizhou Province.
描述了贵州水城矿区汪家寨组（晚二叠世晚期）煤核中一种脱落的具解剖构造的鳞木类叶座。
An intelligent solar bulk curing barn includes solar heating system, coal heating system, leaf loading system, ventilation system and automatic control system.
智能化太阳能密集烤房由太阳能供热系统、煤燃烧供热系统、装烟系统、通风排湿系统和自动控制系统等部分构成。
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