| 单词 | fire-control grid |
| 释义 | fire-control grid [`fīr kǝn´trōl ´grid] ORDNANCE A system of lines that divide a military map into squares, the distance between any two parallel lines representing 1000 yards or 1000 meters, depending on the type of map; maps using the fire-control grid are of sufficiently large scale to be useful in fire control. |
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