| 释义 |
詞目:Tractory、Tractrix 1866-69羅存德英華字典Tractory、Tractrix1平線弧1866-69羅存德英華字典 1筆p 1810 1908顏惠慶英華大辭典Tractory、Tractrixn.1(Math.) A curve whose tangent is always equal to a given line, (數)引線弧(數)引線弧p 2392 1908顏惠慶英華大辭典 1筆英華英華★◀▶平線弧tractory, tractrix tractory、tractrix 英華☞tractatrix |