...amorphous substance,非晶质 fossil,化石 degree of rounding,磨圆度 degree of grains,粒度 地层地貌(stratum and physiognomy) basin,盆地 river valley,河谷 river bed,河床 topography,地形 terrain,地势 attitude,产状 rock base(batholite) ,岩基 rock ...
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