Detection and control of the laser beam focus position is one of the key technologies to ensure laser beam cutting processing quality.

激光焦点位置的检测与控制是激光切割系统中的关键技术之一。

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Since I had promised to focus on the economy like a laser beam, I began with that.

由于我曾许诺要像关注激光束一样关注经济，我就那样开始了。

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However, many of us find great joy in our loved ones, and we can focus like a laser beam on our special interests for hours on end.

但是，我们中的很多人都非常享受和自己所爱的人在一起。如果对某件事有特别的兴趣，我们的精力会集中得像一束激光，干几个小时都不厌倦。

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John McCain, the answer has been to pretty much ignore Iowa, and focus like a laser beam on the first primary state of New Hampshire.

CNN: Candy Crowley/