... 元素的迹 trace of an element 线的截迹 trace of line 面的截迹 trace of surface ...
基于12个网页-相关网页
trace line of plane 平面迹线
trace point of a line 直线的迹点
trace point of straight line 直线的迹点
·2,447,543篇论文数据，部分数据来源于NoteExpress
Researchers have been able to trace a line between some of the earliest modern humans to settle in China and people living in the region today.
BBC: Fossil human traces line to modern Asians
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