He folded the paper to make a perfect right angle crease.
We measured the right angle with a special geometry tool.
She drew a right angle with her ruler and protractor.
她用尺子和量角器画出了一个直角。
The book's edges meet at a sharp right angle.
这本书的棱角交汇成很分明的直角。
A right-angled triangle always contains one corner with a perfect right angle.
直角三角形一定有一个顶角是标准的直角。
The right angle confirms the structure's stability and balance.
这个直角说明整个结构比较稳固、平衡。
The bridge supports connect to the base at a right angle.
桥梁的支撑架以直角连接在底座上。
The triangle has one right angle and two acute angles.
这个三角形有一个直角和两个锐角。
The laser beam reflected off the surface at a right angle.
激光束以直角从这个表面反射出去。
Check this box to display the chart area at a right angle.
选中此框以直角显示图表区。
Your nose practically makes a right angle.
你的鼻实际上 做直角.
The picture frame's corners are designed to create a right angle.
这个相框的四个角都是按直角设计的。
The formation of a right angle between two lines.
垂直线 形成直角的两条线。