During the May4th Movement , the thoughts gained farth development .
至五四时期，这一批判思想得到了进一步的发展。
Effects of Alloy Containing Heavy Rare Farth 、 Mg 、 Si And Fe on Covered Electrode with 99.5 % Nickel Core for Cast Iron
重稀土镁硅铁合金对纯镍铸铁焊条焊缝的影响
farth