| 释义 |
geographic sector search geographic sector search[¦jē·ə¦graf·ik ′sek·tər ‚sərch] (navigation) An orderly arrangement of course lines consisting of three legs, the turning points being at equal distances along radial lines from a fixed point, the first leg being along the first radial, the second leg along the straight line connecting the equidistant points on the two radials, and the third leg along the course line intersecting a fixed or moving base at the time of return. |