Special extra width, monel seat ring allows for wear without loss of seal.
特别超宽蒙乃尔密封环，经得起磨损而不会丧失密封性能。
It selects a threshold from a certain range to regard as one threshold which is the best threshold just as it makes the difference of stroke width in testing and model seal image minimum.
选定一定范围的灰度值作为可能的阈值，从中选出使待验章和样本章的笔划宽度相差最小时的阈值作为最佳阈值。
It selects a threshold from a certain range to regard as one threshold which is the best threshold just as it makes the difference of stroke width in testing and model seal image minimum.
选定一定范围的灰度值作为可能的阈值，从中选出使待验章和样本章的笔划宽度相差最小时的阈值作为最佳阈值。
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