| 1. | Typical beam angles for these beam spread abbreviations are as follows:
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| 2. | Beam angle is chosen to suit the conditions and activities of the planned dive.
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| 3. | Four different beam angles can be obtained on the PAR-64.
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| 4. | It must match the original reference beam angle exactly.
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| 5. | The beam angle is determined by the lamp.
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| 6. | Cantilevered reinforced concrete beams angle from the base to support the floor of the observation room.
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| 7. | Steel and wooden beams angling in all directions to " shore up " the building's remains.
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| 8. | A few underwater lights have a focusing facility by which the beam angle can be adjusted.
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| 9. | However, current implementations only allow the mirrors to have two possible states, giving two potential beam angles.
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| 10. | By providing a more compact beam angle, these sodars reduce the effect of any change in the wind vector.
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