northwestern mutual 中文意思是什麼
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According to the distribution features of vanadium, selenium, molybdenum and uranium at three interlayer oxidation zone tpye uranium deposits in northwestern china, their existence state and the mutual relation to uranium at known uranium deposits, it has been concluded that it is not sufficiently re - liable to make " spatial localization " of uranium ore bodies for interlayer oxidation type uranium deposits by prospecting the associated vanadium, selenium, molybdenum in soil
根據我國西北業已查實的3個層間氧化帶砂巖型鈾礦床中釩、硒、鉬與鈾的展布特徵，認為，按已知鈾礦床中鈾與釩、硒、鋁的存在及相互關系，試圖用壤中釩、硒、鉬測量對層間氧化帶砂巖型鈾礦實施伴生元素找礦或進行「空間定位」的依據尚不足。
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