精密线性导轨导向引动，确保准确印刷和高重复精度。
Precision linearity rail move and ensure to print exactly and high repeat precision.
实验结果表明，该瞄准检测方法的准确度高、重复性好，可用于条码型铟瓦水准尺的分划精度检测。
Experimental results show that this collimation measurement method has high accuracy and good repetition, and can be used in the stripe precise inspection of code-bar invar grade rod.
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