Radon in air comes mainly from rocks and soils is controlled by the geological background.
空气氡主要来源于岩石和土壤，受地质背景控制。
Based on the geological background and mechanism, mechanical model of buckling failure for the consequent slope is given in this paper.
本文根据顺层边坡的地质背景及力学作用机制，抽象出了顺层边坡溃屈破坏的力学模型。
Ore prediction in the region is made on bsis of analysing the geological background for ore formation and aeromagnetic anomaly features.
结合成矿地质背景、航磁异常特征对找矿前景进行了分析。
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