- 平行直线
- parallel: adj. 1.平行的；并行的 (to; with); 【 ...
- straight: adj. 1.直，一直线的 (opp. crooked, ...
- line: vt. 交尾。
- flow in parallel straight lines: 平行流
- straight lines: 直线
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parallel straight lines中文什么意思
- 平行直线
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例句与用法
- Parallel straight lines are straight lines which , being in the same plane and being produced indefinitely in both directions , do not meet one another in either direction
平行直线是在同一平面内的直线，向两个方向无限延长，在不论哪个方向它们都不相交。