常見例句雙語例句The method of detecting the low-energy scattering, neutron background was studied.研究了扣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:影錐屏蔽體對于周圍及樣品造成的散射中子本底影響低于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體中的地球化學(xué)背景值是一項新的分析技術(shù)。 返回 background neutron