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字词 量角器
释义 量角器liángjiǎoqì量角度或画角用的器具,普通是半圆形,在圆周上刻着0到180的度数。{protractor; instrument in the form of a graduated semicircle that is graded from 0 to 180 for plotting and measuring angles}
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更新时间:2025/4/13 9:15:55