单词 | narrow beam |
释义 | narrow beam Some stellar explosions, called gamma-ray bursters, are especially dangerous because all their lethal rays are focused into a narrow beam, like a searchlight. The Sun It fired a narrow beam of light at the ground which tracked backwards and forwards as if it were looking for something. The Sun To keep from rousing other sleepers, the device uses a set of parametric speakers capable of focusing sound into a narrow beam. Christianity Today Focusing on the narrow beam of light they provide can cause a sort of tunnel vision that can trigger feelings of nausea in those prone to motion sickness. Times, Sunday Times The sun cast a narrow beam like a flashlight moving over a table as it traced flat circles that varied over the 365-day cycles. Retrieved from Wikipedia CC BY-SA 3.0 |
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