“distance mark”的概念、定义、翻译、参考文献-科学参考

单词	distance mark
释义	distance mark [`dis·tǝns ´märk] ^ELECTRONICS A movable point produced on a radar display by a special signal generator, so that when the mark is moved to a target position on the screen the range to the target can be read on the calibrated dial of the signal generator; usually used for gun laying where highly accurate distance is important.
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