• 1. passing beam: 近光光束 | 近光
• 2. unsymmetrical passing beam: 不对称近光
• 3. passing low beam: 近光

• 1.Even a passing beam of light will be pulled right in.
  一束经过的光线也会被吸入。
  dict.yoduao.com
• 2.They exposed the creatures to a beam of directed blue light, as might come from certain bioluminescent predators, as well as to other stimuli such as passing shadows.
  他们揭露了生物的蓝色光束，可能来源于某个会发光的食肉动物也可能是受到其他的刺激，如通过的阴影。
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• 3.It is far from simply a radio beam passing through a vacuum at "the speed of light".
  这远不像一束无线电波“以光速”穿过真空层那样简单。
  dict.yoduao.com

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