For this effect, we're going to use a very soft, narrow beam, so go under the Style pop-up menu at the top of the dialog (this is where the presets are) and choose Flashlight.

为了这个效果我们需要用到一个很窄的柔化光束。所以在对话框顶部的样式选择菜单中点选手电筒效果。

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A laser beam like the one pictured up top combines short and long pulses of light to identify individual molecules with a high degree of precision from a safe distance.

一道激光射线由或短或长的光脉冲组合而成，从而能在一个安全的距离高精度地辨别单个的分子。

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Klaette looked up at the top, watching the beam of light sources.

科莱特抬头看着墓顶，看着那束光的来源。

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Managing stress takes a lot of work on top of training to become the fastest hurdler in the world or the best on the beam.

CNN: The highs and lows of the 2012 Olympic 'crying games'