point of intersection of tangents切线: tangent交点: crossover point; intersectio ...航线交点: intersection of air routes节线交点线: noda line三线交点: trijunction下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:切线交点，即可在微信中查询翻译
