重扇(Tradescantia navicularis)，鸭跖草科重扇属植物、也称多浆植物。原产秘鲁北部。
他锁牢了那扇重门把钥匙放在了他的口袋里。
He locked the heavy door securely and kept the key in his pocket.
利用断面沟扇体系及基底形态、地震反射结构、粘土矿物组合、岩屑类型、重矿物组合明确古流向和物源。
Source orientation was studied by using Basement and fractured surface form, Seismic Reflection structure, Clay mineral Assemblages, cuttings type and heavy mineral Combination.
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