... 铷锶年龄测定 rb-sr dating 铸造 casting ;fashion ;foundry ;gray iron foundry 铸造假说 foundry ...
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gray iron foundry sewage 灰铸铁铸造污水
gray iron foundry
灰铸铁铸造厂
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In the paper, based on the Propotional Solidification Theory and Large Orifice Discharge Theory, the foundry technology of gray iron casting shell was designed by the method of CAD.
论文根据均衡凝固及大孔出流理论，用计算机辅助设计的方法改进了壳体灰铸铁件的铸造工艺。
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