cross wire交叉線學術名詞十字絲:天文學、海洋地質學、地質學十字線:物理學、電機工程叉絲:天文學叉線:物理學橫針:紡織科技交叉針:紡織科技交叉線:電機工程英文釋義either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are used for sighting or calibration