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uranium n.【化學】鈾 (U)。 fertile uranium...

uranium dioxide

Indirect ionization by neutrons can also result from fission of plutonium or uranium isotopes . 通過使钚或鈾同位素裂變,中于也能產生間接的電離作用。

The deep oxidation and groundwater leaching solubilizes much of the loosely bound uranium . 深部氧化和地下水淋蝕使大部分固定得比較松散的鈾溶解。

Secondary uranium minerals are illustrated in a bureau of mineral resources prospector's handbook . 次生鈾礦物已列入礦物資源局的普查手冊中。

The establishment of uranium supplies for the future must depend to an increasing extent . 為了滿足今后對鈾礦資源的需求,必須擴大普查規模。

The concept of regional uranium enrichment has been discussed by davidson, saum and link . 戴維森、索姆和林克等論述了區域性鈾富集的條件。

The method could well prove effective in defining broad areas of uranium favourability . 該法在圈定大面積的鈾成礦有利區方面可能是有效的。

The objection to the placer origin have centred around the softness of uranium compounds . 反對砂礦成因的論據主要是:鈾的化合物不耐磨蝕。

Uranium has been redistributed by biological processes as well as in the sedimentary cycle . 由于生物作用,以及沉積旋回,鈾發生重新分布。

Relocation of syngenetic uranium may explain a characteristic feature of the deposits . 同生鈾的重新分布可以用來解釋礦床的一個典型特征。

Argument against a hydrothermal origin is the sympathetic distribution of uranium and gold . 反對熱液成固的理由是鈾和金有著一致的分布。

Radiogenic heat, even from a fairly deep-seated uranium orebody, could be measured . 即使鈾礦體埋得足夠深,它的放射成因熱也能被測出。

The most sophisticated laboratory conditions mean the difficulty of determinations of uranium . 高度現代化的實驗條件對測定鈾有困難。

On behalf of the a.e.a., the uranium reconnaissance in the u.k. was undertaken . 受原子能管理局的委托,在英國開展了鈾礦普查工作。

They reported the abnormal uranium content of waters issuing from tuffaceous rocks . 他們發現,從凝灰巖中流出的水中鈾含量反常。

Neutron activation or chemical analysis for uranium are used as a follow-up . 中子活化分析和化學分析鈾可作為進一步追索的方法。

Radiometric techniques are not always appropriate to the earth for uranium deposits . 放射性方法在鈾礦普查中并不總是有效的。

In the case of uranium the sample location or medium is not as critical . 分析鈾時對取樣點位置或介質的要求就不那么嚴格了。

Radiometric techniques are not always appropriate to search for uranium deposits . 放射性方法在鈾礦普查中并不總是有效的。

The earliest production reactors necessarily used normal uranium as fuel . 最早為生產用的反應堆,必須使用普通鈾作為燃料。