| 单词 | circle of uncertainty |
| 释义 | circle of uncertainty [`sǝr·kǝl ǝv ǝn`sǝrt·ǝn·tē] NAVIGATION A circle having as its center a position and as its radius the probable error of the position; the percent of the probable error must be specified error; it is a circle within which a craft is considered to be located. |
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