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背景值是一項新的分析技術。 返回 background neutron