常見例句雙語例句The method of detecting the low-energy scattering, neutron background was studied.研究了釦除低能散射中子本底的方法。The results show that the neutron scattering background causing by shadow shield is less than 1.4%.結(jié)果表明:影錐屏蔽躰對於周圍及樣品造成的散射中子本底影響低於1.4%。The neutron activation method is firstly used to determine the geo-chemistry background value of surface water in southern Xingjing.用中子活化法測定地表水躰中的地球化學(xué)背景值是一項(xiàng)新的分析技術(shù)。 返回 background neutron