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摆盘式混砂机是作者发明的一种铸造用新型混砂设备,具有中国专利。
Swinging mixer is a new type foundry sand mixing equipment invented by the author, which had got the patent of China.
youdao
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摆盘式混砂机是作者发明的一种铸造用新型混砂设备,具有中国专利。
Swinging mixer is a new type foundry sand mixing equipment invented by the author, which had got the patent of China.
youdao