... precision roll grinding machine轧辊精密磨床 precision tube精密管 precritical临界前的、亚临界的 ...
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Precision Tube Technology 精密管技术公司
precision tube co 精密管系公司
high-precision tube 高精度管
high precision tube 高精度管材
cold drawn precision tube 冷拔精密管
electrically welded precision tube 精密电焊管
precision ground tube 精密磨光管
precision seamless steel tube 精密无缝钢管
precision steel tube 精密钢管
The new technology is especially fit for working big diameter and high precision tube parts.
这对于加工大直径、高精度的管类件具有重要的意义。
Better precision X ray tube, and wider analysis scope, long lifetime up to 10 years.
激发源X射线光管精度更高，范围更宽，使用寿命长达10年以上；
The precision of liquid column manometer was described. The correct use method and error correction of U tube manometer and double tube differential pressure gauge were analysed.
叙述了液柱式压力计的精度，对U形管压力计和双管差压计的正确使用方法及误差修正做了简要分析。
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