An angle of 90 degrees is called a right angle.
九十度的角叫做直角。
right angle
英汉-汉英词典
直角
词组 | 习惯用语
您要查找的是不是：
Bright Bangles 鲜亮手镯
Right angles 直角
Right-Angle 直角; 直角 直角;
Right-Angled and 直角和
Right angle type 直角形
Remove Right Angles 把直角转换为对角线
Right Angle Plug 连接器
Square And Right Angles 方形和直角
Right-Angle Milling Head 直角铣头
Right angle welding seam 直角角焊缝
right angle [数] 直角
right angles 直角( right angle的名词复数 )
at right angles 垂直
a right angle n. 直角
right angle ruler 直角尺
right angle pumping 直角泵激
right angle plate 直角板
right angle gauge 直角规
right angle crank 直角曲拐
right angle connector 直角连接器
英语例句库
- Line A crosses line B at right angles.
A线与B线成直角相交。 - Streets usually intersect at right angles.
马路通常以直角交叉。 - A pass route in which the receiver runs downfield for several yards, then cuts at a right angle toward the nearest sideline.
价格沿惯性向前运行一段，然后朝最近的边线直角切入。 - Height is a measurement at right angles to this surface, and though gravity pulls mainly toward the centre of the earth, the geocentre, there are local variations.
高程是一个垂直于这个表面的测度，而虽然重力总是将物体向地心方向拉，但局部总会有一些变化。 - The team also noted a hinged flap near the base of the wing, called an Alula, which is deployed at right angles to the wing, which may be being used as a air flow-control device.
这个小组还注意到，翼根附近铰接的副翼，被称为小翼的，对翼成直角配置，它可能被用来作为空气流量控制装置。
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原声例句
日常生活高频词汇
可汗学院：物理
This, I'm assuming is a right angle.
这个是直角。
可汗学院：物理
So this right over here is a right angle.
所以现在画的这个角就是一个直角。
PBS趣味科普
They're carefully aligned edge to edge at a right angle.
它们呈直角严丝合缝地对齐。
我们这一天 第二季
I was so sure I had the right angle on this, Beth.
我本来那么确定这次肯定会有好转的，贝丝。
精选英语短文
Only with the correct equipment coupled with right angles you can avoid the snag.
只有正确的设备加上正确的角度，你才能避免障碍。
中高级英语短文
Bertozzi called the field she created bioorthogonal chemistry—orthogonal means intersecting at right angles.
贝尔托齐称她创造的领域为生物正交化学——正交意味着以直角相交。
双语版 TED-Ed 演讲精选
Your knees should be at a right angle with your feet flat on the floor.
你的膝盖应在正确的角度 且脚掌平放接触地面。
伍迪脱口秀精选
Leon is always walking with his hand cocked at a right angle, like this, y'know.
利昂走路的时候也总是把他的手绷成直角，就像这样。
英国原版语文第四册
As the herd approaches us, it swings round its front, at right angles, and makes off westward.
牛群接近时，会在突然跑开，找到合适得角度就向西奔逃。
中文百科
直角
在几何学和三角学中，直角，又称正角，是角度为90度的角。它相对于四分之一个圆周（即四分之一个圆形），因为把圆周对应的圆心角划分为360度，所以直角等于90度，而两个直角便等于一个平角（180°）。角度比直角小的称为锐角，比直角大而比平角小的称为钝角。
当两条线的夹角是直角，这两条线便是互相垂直，是几何上的一个重要性质。而一个三角形的其中一个内角为90°时，便称为直角三角形，是应用毕氏定理的先决条件。
如果直线AB为圆形的直径，那么取圆上的任何一点C所形成的三角形，∠ACB必为90°，是圆的其中一个性质，名为（半圆上的圆周角）。
英语百科
Right angle 直角
In geometry and trigonometry, a right angle is an angle that bisects the angle formed by two adjacent parts of a straight line. More precisely, if a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles. As a rotation, a right angle corresponds to a quarter turn (that is, a quarter of a full circle).
近义、反义、联想词
近义词
n.angle, angular unit
反义词
n.oblique angle
英英词典
right angle n.
- the 90 degree angle between two perpendicular lines
- a quarter of the circumference of a circle
synonymous： quadrant
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