大家都搜:
准线线
1、directrix math───准线数学
2、directrix means───准线意味着
3、directrix of───直线
4、directrix def───准线定义
5、directrix calculator───准线计算器
6、directrix y───准线y
7、line line───线条线条
8、directrix───n.[数]准线
9、directrix k-p───准线k-p
1、directrix line of a conic.───曲线的准线。
2、The directrix line of a conic.───二次曲线的准线。
1、The directrix line of a conic.
2、Based on the geometry characteristics of Bertrand surfaces, the complicated surface conjugation issue can be discussed with their directrix line.