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- By defining the directed area of polygons, We went into its properties and applications andobtained several new fixed value theorems of polygons. 通过给出平面多边形的有向面积，探讨有向面积的一些性质和应用，提出一平面多边形的若干新的定值定理。
- In this paper, a fixed value theorem for directed areas of a kind of triangles in elliptic circumscribed polygons is obtained, thus some results, including the famous Brianchon theorem for elliptic circumscribed triangles, are deduced easily. 本文给出椭圆外切 2n +1边形中一类切顶线三角形有向面积的一个定值定理及其若干推论 ,其中包括射影几何中著名的Brianchon定理在椭圆外切三角形中的情形
- In this paper,some fixed value theorems for directed areas in circular c ircumscribed pentagons are obstain ed,thus some concurrent results,including the famous Brianchon theo rem for circular circumscribed pent agons,can be deduced easily. 本文给出圆外切五边形中有向面积的几个定值定理,并据此推出圆外切五边形中的一些共点性结论,其中包括射影几何中著名的Brianchon定理在圆外切五边形中的情形。
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- A Formula of Directed Area for A Class of Pedal Polygons and Its Application 一类垂足多边形的有向面积公式及其应用
- I thought the law was directed against husbandmen. 我认为该法律是直接针对农民的。
- The complaints are directed at you. 这些牢骚是对你而发的。
- I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
- He has chosen the most direct route. 他选取了最直的路线。
- What she said was a cut at (ie was directed at) me. 她的话是冲著我来的。
- She's very direct, believes in speaking her mind. 她为人直率，喜欢有什么说什么。
- Can you direct me to the shoe department? 请告诉我卖鞋部在哪里。
- Be there a direct train for Beijing to Nanning? 从北京到南宁有直达车吗？
- He directed his letter to the dean's office. 他把信寄给了主任办公室。
- He directed the building of the new bridge. 他指挥修建这座桥。
- She directed the planning of the festival. 她统管节日活动的筹划。
- His remarks were not directed at you. 他的话不是针对你的。
- His boss directed him to cancel the meeting. 他的老板指示他取消这次会议。
- All eyes directed their rays on the hero. 所有人的目光都汇集到那位英雄身上。
- We directed our steps towards home. 我们朝家走去。
