名词接触，相切
tangency
1. 接触：阿波罗尼奥斯问题(Apollonius' Problem)是古希腊数学家阿波罗尼奥斯(Apollonius of Perga)提出讨论的几何作图问题,载於他的著作<论接触>>(Tangency)中,虽然原书经已失传,但学者帕波斯(Pappus of Aexandria)记载了他在<论接触>>一书中所讨论的作图问题:设有3个图形,
2. 触：problem)是古希腊数学家阿波罗尼奥斯(apollonius of perga)提出讨论的几何作图问题,载於他的著作<论接触>>(tangency)中,虽然原书经已失传,但学者帕波斯(pappus of aexandria)记载了他在<论接触>>一书中所讨论的作图问题:设有3个图形,
3. 接触、正切、切线：tandem tube drawing串联拉管 | tangency接触、正切、切线 | tangent切线、正切
noun
1. (electronics) a junction where things (as two electrical conductors) touch or are in physical contact
e.g. they forget to solder the contacts
Synonym: contact
2. the state of being tangent
having contact at a single point or along a line without crossing