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fast neutron fɑ:stˈnu:ˌtrɔn 短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 n.〈物〉快中子 Through shooting fast neutron and measuring spectral gamma-ray produced by neutron activation reaction, oil-bearing saturability of strata outside boring casing can be determined. 通过向地层发射快中子并测量中子反应产生的伽玛射线能谱能够确定套管外面地层的含油饱和度。 chemyq |