... three folded yarn 三股线 three high roller mill 三辊轧坯机 three image orthicon camera 三超正析摄像管摄像机 ...
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three-roller high mill 三辊轧坯机
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The paper involves an investigation into the new steel pipe manufacture technology of roller die drawing with the two-stand Y type three-high mill.
研究了利用二连式Y型三辊辊模拉拔钢管生产新技术。
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