Bar codes are difficult for printing for its close tolerance.

条形码的印刷质量要求比较高,因而它的印刷难度较大.

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Precision forging is normally taken to close - to - final form or close tolerance forging.

精密锻造技术通常可以称为小余量锻造技术或最小公差锻造技术.

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Accurate control of compression through close tolerance of gasket groove and allowance for radial expansion.

通过密封环槽和精确公差和径向膨胀的精确留量实现压缩的精确控制.

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