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Riphaean 名词
地质学 Riphean (MichaelBurov)
缩写 R (MichaelBurov); Riphaean era (MichaelBurov); Riphaean erathem (MichaelBurov); Riphaean epoch (MichaelBurov); Riphaean age (MichaelBurov); Riphaean time (MichaelBurov)
Riphaean 形容词
地质学 рифейский (MichaelBurov)