等腰三角形有两条边相等且这两边所对的角也相等.
An isosceles triangle has two equal sides and the two angles opposite those sides are equal.
它的大致轮廓是一个等边三角形。
其中有一个人物叫Wereket-El，是居住在埃及尼罗河三角洲塔尼斯的腓尼基商人。
One of the characters is Wereket-El, a Phoenician merchant living at Tanis in Egypt's Nile delta.
她喜欢谈论对称和不对称的三角形。
She likes to talk about symmetrical and asymmetrical triangles.
在博茨瓦纳的奥卡万戈三角洲，一只猎豹正在一座白蚁冢上俯瞰着草原。
A cheetah surveys the savanna from atop a termite mound in Botswana's Okavango Delta.
这段路大约开行3个小时，算是比较顺畅和轻松，而且，离开“长三角”的城市和工业区越远、越接近莫干山，道路两边也就越有看头。
It is a relatively easy and relaxing three-hour drive, and the trip grows more interesting as you approach Moganshan and get away from the urban and industrial sprawl of the Yangtze River delta.
夕阳西下，博茨瓦纳的奥卡万戈三角洲被一片紫色的光辉所照耀，驴羚正在休息。
Lechwe rest as the setting sun casts a purple glow over Botswana's Okavango Delta.
另外，其他一些科学家不仅在湄公河三角洲发现了一种带斑纹的野兔，而且在印尼也发现了一种色彩斑斓的鱼类，这种鱼会在海床上弹跳着前进。
Then others discovered a striped rabbit in the Mekong Delta and a gaudy Indonesian fish that swims by bouncing haphazardly off the sea bottom.
它的耳朵是三角形的。
所有陆龟品种都在三角形的上部形成一个紧密的点群；所有的水龟都聚集在三角图的下方。
All the land tortoise species formed a tight cluster of points in the upper part of the triangle; all the water turtles cluster in the lower part of the triangular graph.
在这个实验室中，生物学家JoanLindberg饲养了几千条的三角洲胡瓜鱼，这个人工繁育计划旨在形成一个可能的安全网，防止这种鱼类灭绝。
There, biologist Joan Lindberg is raising thousands of delta smelts in a captive-breeding program as a possible safety net against extinction.
心理学家罗伯特·斯坦伯格阐明了一种爱的三角理论并且声称爱有三个不同的组成部分：亲密，承诺和热情。
Psychologist Robert Sternberg formulated a triangular theory of love and argued that love has three different components: intimacy, commitment, and passion.
虽然它一直是喜剧类电影和电视剧永恒的题材，但似乎每一代人都不得不自己学习如何让这种三角关系维持下去。
It has been fodder for comedy in movies and on TV forever, yet each generation seems to have to learn for itself how to make this triangle work.
而对天文观察者来说，它意味着夏季的标志—夏季大三角（在夏季的东南方高空里由天琴座的织女星、天鹅座的天津四及天鹰座的牛郎星组成的三角形）的退去和预示着秋季的星座的到来。
For skywatchers it means the passing of the season's trademark Summer Triangle of stars and the arrival of the autumn constellations.
作为河州首府，哈科特港位于尼日利亚三角洲的中心。此地的河流孕润着尼日利亚丰富的油气储备——这也是非洲最大的油气储备。
Port Harcourt, capital of Rivers state, is the urban hub of the Niger Delta, where the creeks contain the bulk of Nigeria's vast oil and gas reserves, the biggest in Africa.
我的音乐生涯包括在幼儿园演奏三角铁。
My musical career consisted of playing the triangle in kindergarten.
浙江省地处中国东南沿海长江三角洲南翼，近年来经历了经济的快速增长。
Zhejiang Province is located in the southern wing of the Yangtze River Delta and has experienced rapid economic growth in recent decades.
密西西比河三角洲上空如斑点般散布着烟云，褐绿色的沉积物勾勒着三角洲广阔的边界。
The Mississippi River Delta is speckled with clouds and outlined by a wide border of greenish-tan sediment.
在脚下，则有一长列蚂蚁背负着三角形的绿叶碎片。
And at your feet is a swath of ants bearing triangular bits of green leaf.
大概二十分钟过去了，我们在新泽西北部乱得像意大利面条一样的高速公路上迷失了方向，车子不断地兜圈儿、走三角形、绕8字。
Some twenty minutes later, we were hopelessly lost in a spaghetti bowl of northern New Jersey highways, driving in circles, triangles, and figure eights.
一个三角形的所有角度之和是180度。
他们用一种三角形的坐标纸把三个测量值画在一起。
They used a kind of triangular graph paper to plot the three measurements against one another.
由于鲑鱼和胡瓜鱼这些濒危物种受到威胁，国家当局已经要求消减从该三角洲往外输水的量。
State authorities have ordered cutbacks in deliveries of water from the delta because of the threat to endangered species such as salmon and smelt.
他占领了哥达瓦里三角洲的帕纳拉和科纳王国。
He occupied the Panara and Kona kingdoms of the Godavari delta.
希克索斯人从公元前1650年开始入侵埃及的尼罗河三角洲并统治它。
The Hyksos invaded the Nile Delta of Egypt and ruled it from 1650 B.C.
我们可以把斯图尔特定理直接应用于三角形的中线上。
We can apply Stewart's theorem directly to the median of a triangle.
我们可以把斯图尔特定理直接应用于三角形的中线上。
We can apply Stewart's theorem directly to the median of a triangle.
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