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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The utility model is of bridge type structure of right and left upright pillars adding top beam, the lifting device with nut screw mandrel is moving along the upright pillars.

本实用新型为左右立柱加顶部横梁的桥式结构，螺母丝杆升降装置沿立柱上下移动。

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