| 21. | Luminescent safety vests will be issued to all employees prior to their departure.
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| 22. | The tracers glow a bright, luminescent green through our night vision goggles.
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| 23. | A way around this problem is with luminescent tags.
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| 24. | It is covered by fungi and has luminescent clouds that block all sunlight.
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| 25. | It is believed that these tubercles simply reflect light and are not luminescent.
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| 26. | I saw a luminescent jellyfish film made by the National Geographics hours ago.
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| 27. | Early works considered the integration of luminescent materials as erosion sensors in TBCs.
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| 28. | Pregel's company also built radioactive neutron sources and radioactive luminescent signs.
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| 29. | Minute, luminescent dots are scattered about the skin without a regular pattern.
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| 30. | In the 1960s, fireflies, glow-worms and other luminescent creatures.
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