He tried to shift Destiny so that he had an unobstructed view of Lori.
An unobstructed view of the great mountain is rarely obtained, however, because of the mists and clouds which cover its cone.
The average horizontal illuminance over the whole area on the unobstructed floor should not be less than 1 lux.
Diffraction spikes on a reflector's star images, caused by its secondary mirror spider vanes, are absent in an unobstructed refractor.
Diffraction spikes on a reflector 's star images, caused by its secondary mirror spider vanes, are absent in an unobstructed refractor.