sighting
照准; 觀察
sighting
觀察[ 測 ]
Sight v. t. [imp. & p. p. Sighted; p. pr. & vb. n. Sighting.]
1. To get sight of; to see; as, to sight land; to sight a wreck.
2. To look at through a sight; to see accurately; as, to sight an object, as a star.
3. To apply sights to; to adjust the sights of; also, to give the proper elevation and direction to by means of a sight; as, to sight a rifle or a cannon.
Sight·ing, a. & n. from Sight, v. t.
Sighting shot, a shot made to ascertain whether the sights of a firearm are properly adjusted; a trial shot.
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sighting
n : the act of observing; "several sightings of enemy troops
were reported"