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DOUBLEEBELLOW TYPE DOUGHNUTTSHAPED VACUUM VESSEL
DOUBLEEBELLOW TYPE DOUGHNUTTSHAPED VACUUM VESSEL
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机译:双倍贝洛型豆瓣形真空容器
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摘要
PURPOSE:To manufacture easily vacuum vessel of high pressure resistance and electric resistance by connecting cylindrical segments in such a way that a double bellow constitutes a vacuum space.
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