trace back
1. 追溯
Her family can trace its history back to the 15th century.
她的家史可追溯到15世纪。
习惯用语double on one's trace1.(猎物)故意弄乱脚印(以逃避追捕)2.搅乱踪迹(使人迷惑)lose (all) trace of1.失去...线索without a trace1.无影无踪地trace back to1.追溯到, 追究到, 追查到trace out1.探寻踪迹; 描摹出, 映写出; 计划出特殊用法alternating trace1.交替迹anodal trace1.离节迹arc trace1.电弧痕迹axial trace1.【地质】轴线barograph trace1.气压自配曲线beam trace1.电子束径[轨]迹blurred trace1.模糊痕迹branch trace1.枝迹bright trace1.亮迹broad azimuth trace1.宽方位角线calibration trace1.校正迹线[曲线]calling trace1.调用跟踪circular trace1.圆形轨迹clean trace1.净迹comprehensive trace1.全跟踪dark trace1.暗迹dimmer sweep trace1.扫描暗迹dorsal trace1.背迹double trace1.双迹dual trace1.双轨迹(录音)elliptical trace1.椭圆扫描轨迹fault trace1.【地质】断层迹, 裂纹迹finite trace1.有限迹foliar trace1.叶迹flame trace1.火焰的痕迹horizontal trace1.水平迹hyperbolic trace1.双曲线轨迹lateral trace1.侧(生)迹latex trace1.胶乳迹leaf trace1.叶迹leaflet trace1.小叶迹linear trace1.线性扫描many-pronged trace1.多叉径迹matrix trace1.矩阵的迹memory trace1.【心理】记忆痕迹no trace1.线索不明, 无法查找normal trace1.正规迹oscillograph trace1.示波图; 波形图; 示波图扫迹oscilloscope trace1.示波器描迹peaked trace1.尖部扫迹principal trace1.主迹program trace1.跟踪程序, 程序故障检测reduced trace1.缩减迹return trace1.回描, 归迹, 回程root trace1.根迹scale trace1.鳞迹selective trace1.选择跟踪(程序)semi-finite trace1.半有限迹sharp trace1.明显痕迹sinusoidal trace1.正弦曲线(扫迹), 正弦线[轨]迹spiral trace1.螺旋线(轨迹), 螺旋线扫迹steam trace1.(加热)蒸汽管道sweep trace1.扫(描)迹(线), 扫描线synchro trace1.联动刻模铣system trace1.系统跟踪torpedo's trace1.鱼雷行迹ultra trace1.超痕量ventral trace1.【植】腹迹vertical trace1.垂直迹wavy trace1.波浪形迹线trace of a compact operator1.紧算子的迹