单词 | cross hair |
释义 | cross hair【计】 十字线 cross hair cross hair 或 cross.hair AHD: [krôs“hâr”, kr¼s“-] D.J. [6kr%8s7he*, 6krKs-]K.K. [6kr%s7hWr, 6kr$s-]n.(名词)Either of two fine strands of wire crossed in the focus of the eyepiece of an optical instrument and used as a calibration or sighting reference.十字丝:呈十字形交叉于光学仪器的目镜焦点上的两根细丝之一,用于校准或瞄准参考 |
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