A team of physicists in the us has created an infrared laser beam at a point in mid air, by focusing a UV laser onto a tiny volume of oxygen molecules.

美国的一个物理学家团队通过将一束紫外激光聚焦于一小块氧分子中，发明了一种聚焦于半空中一点的红外激光束。

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At the touch of a button, however, all of its energy can be focused onto a single point.

只需碰触一个按钮，它的全部能量却可以集中到一个点上。

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Next, mount the file system onto a mount point using the loop device (see Listing 2).

接下来，使用循环设备将该文件系统挂载到一个挂载点上（如清单 2 所示）。

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The hosts lost the ball in midfield and Munster countered superbly, with Howlett showing his paces as he raced onto Denis Hurley's pin-point kick through to score.

BBC: Gloucester 3-16 Munster

Wilson is a block-long, one-way street at the point with a stop sign before it empties onto Kent.

WSJ: After Parents Die in Crash, a Birth

As expected, the hosts responded with determined effort, Primus denied from close range by Liam Rosenior's goal-line clearance before Pamarot crashed a header onto the bar from Gary O'Neil's pin-point cross.

BBC: Portsmouth 1-1 Fulham