得益于精确切割技术，研究者们可以对薄如纸张的大脑切片进行深入研究。

Thanks to precision cutting techniques, researchers are able to examine a paper-thin slice of human brain.

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此外，准分子激光器已经允许塑料和聚合物，以非凡的精确切割。

In addition, excimer lasers have allowed plastics and polymers to be cut with extraordinary precision.

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比如，如果横楣未能精确切割，它们将无法准确摆放在竖立的石柱上。

For example, if the lintels were cut wrong, they could not lie correctly on the upright stones.

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