With the increase of modifying temperature, the modification of rare earth Pr enhances on primary silicon, fades on eutectic silicon.
随着变质温度的升高，稀土对初晶硅的变质作用加强，而对共晶硅的变质作用减弱。
With the increase of modifying temperature, the modification of rare earth Pr enhances on primary silicon, fades on eutectic silicon.
随着变质温度的升高，稀土对初晶硅的变质作用加强，而对共晶硅的变质作用减弱。
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