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- delayed neutron fraction 缓发中子份额,缓发中子比
- Standard field procedures are employed in taking samples for analysis by delayed neutron determinations. 用于缓发中子测定的分析样品的标准野外制备过程如下。
- This paper presents the analysing accuracy of uranium content by delayed neutron method is up to 0.2 ppm and the relative error is less than 15%. 本文介绍了应用缓发中子法测定样品中铀含量的精密度可达0.;2ppm;分析相对误差小于15%25。
- delayed neutron fission product monitor 缓发中子裂变产物监测器
- delayed neutron leached-hull monitor 缓冲中子包壳监测器
- Utanium analysis by the emission of delayed neutrons, following fission of U235, has been described by Amiel. 阿密尔论述了应用U235裂变后产生的缓发中子流分析铀的方法。
- Uranium analysis by the emission of delayed neutrons, following fission of U235, has been described by Amiel. 阿密尔论述了应用U235裂变后产生的缓发中子流分析铀的方法。
- The technique for detecting the delayed neutrons from neutron-induce fission in depleted uranium system was studied by using an active method. 摘要用有源（主动）的方法研究了贫化铀及其组合系统的中子诱发裂变缓发中子的探测技术。
- A general neutron breeder formula considering one group delayed neutron 考虑单群缓发中子时中子增殖的统一公式
- The sutdy on technique of measuring fission, delayed neutrons from uranium materials and the method of distinguished nuclear from non nuclear materials with the active method are described. 用主动方法研究了核材料铀的裂变缓发中子测量技术和区分核与非核材料的方法。
- The soil absorbs only a fraction of the rain that beats down. 土壤只吸收猛打到地面上的雨水的一部分。
- He lost his way, which delayed him considerably. 他迷了路，这使他耽搁了很久。
- Our sailing boat was delayed by contrary winds. 我们的帆船被逆风耽搁了。
- I'll be ready in a fraction of a second. 我马上就好。
- The story does not contain a fraction of truth. 这故事没有一点真实性。
- He has done only a fraction of his homework. 他只做了家庭作业的一小部分。
- It may well be that the train is delayed. 很有可能火车晚点了。
- He is delayed because his taxi has an accident. 由于他的出租车出了故障，他被耽误了。
- The train was delayed because of ice on the line. 火车因铁轨结冰而误点。
- The car stopped within a fraction of an inch of the wall. 汽车在离墙不到一英寸的地方停住了。
