at a tangent中文什么意思

沿着切线的方向

• tangent:    adj. 1.接触的。 2.【数学】 ...
• arc tangent:    反正切
• asymptotic tangent:    渐近切线

例句与用法

1. It ' s not easy to follow her think because she ' s always go off at a tangent
   要跟上她的思路并非易事，因为她老是突然扯到题外去。
2. Tangential orientated at a tangent to a circle , the circle being , for example , the surface of a plant stem
   切向的：沿圆周的一个切线方向。植物体存在的圆形可以为茎杆表面。
3. But despite all his efforts , she flew off at a tangent and walked so quickly that zoe could scarcely follow her
   娜娜虽然尽量克制自己，还是拔腿就走，她走得很快，佐爱赶不上她。
4. The teacher was telling us about the poet ' s life , when he went off at a tangent and started talking about his war experiences
   老师在给我们讲述诗人生平故事的时候，突然把话题一转，讲开他自己的战争经历来了。