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大萧条促使更多的国家转向进口替代工业化。
The great depression caused many more countries to turn toward isi .
本文介绍了罩式炉国产化改造过程中，以国产耐火材料替代进口高级耐火材料作炉衬的应用及进展。
This paper introduces the national building process of the bell type furnace. The furnace linings USES the home built refractory to replace the input products.
介绍了进口纺织设备上传感器、继电器、接触器、电动机等电气器件的修复和国产化替代方面的生产实践。
This paper introduces the fault restoration of sensor, relay, contactor and electromotor of imported textile machines and the production practice of substitution of the devices made in China.
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