parent rock

基本解释

The variation of chemical weathering indices with the depth also supported the result of grain size analysis, i. e. parent rock being inhomogenous.
化学风化指标在剖面的变化也支持了粒度分析结果，即风化壳母岩的不均一性。
Soil is an important component in agriculture resources which relates with parent rock, topography-geomorphology, climate, vegetation and artificial factor.
土壤是农业资源中的重要组成部分，土壤的发育受到地势地貌、母岩母质、气候、植被及人为因素的影响。
Based on analysis of heavy minerals, paleocurrent and clastic particles grading, the sediment of Yanchang section in Ordos Basin comes from two types of parent rock.
根据重矿物组合、古流向和碎屑颗粒粒度等资料，对鄂尔多斯盆地上三叠统延长组物源区的母岩性质、物源方向及演变特征等进行了分析。

Arthur Ryan, the CEO of the Prudential Insurance Co. of America (the Rock), the brokerage's parent company, handpicked Strangfeld, 48, for the job in the fall.
FORBES: The great divorce
Arthur Ryan , chief executive of the brokerage's parent company, Prudential Insurance Co. of America a.k.a. the Rock handpicked Strangfeld, 48, for the job last fall.
FORBES: The Great Divorce
Arthur Ryan , chief executive of the brokerage's parent company, Prudential Insurance Co. of America—a.k.a. the Rock—handpicked Strangfeld, 48, for the job last fall.
FORBES: The Great Divorce