您要查找的是不是：
- 小于直角的角叫做锐角.An acute angleis an angle less than a right angle.
- 一个不是直角也不是直角的倍数的角an angle that is not a right angle or a multiple of a right angle
- 两角和为90°，其中一个角叫做另一个角的余角an angle related to another so that the sum of their measures is 90°.
- 一个不是直角也不是直角的倍数的角。an angle that is not a right angle or a multiple of a right angle.
- 三角(n) a triangle
- "别人在山上建造高高的四四方方的房子,但莱特不想丢掉山峦美。"成直角的。Other people built tall, square houses on hills, but Wright did not want to lose the beauty of the hill.
- 余角两角和为90°，其中一个角叫做另一个角的余角An angle related to another so that the sum of their measures is90=.
- 直角right angle
- 半角DBC case
- 直角的right-angled
- 小于90度的角叫锐角。Angles of less than 90 degrees are called acute angles.
- 倒角chamfer angle
- 与地表平行通向井下的坑道是平峒。还有与地表成直角的竖井，与地表成一定角度的斜井。a tunnel horizontal to the surface leading to a mine is called an adit. There are also vertical shafts at right angle to the surface and inclined or slope shafts at another angle to the surface.
- 左上角top left corner
- 六角sexangular
- 两个有桅的船成直角的垂在前桅并且船头和船尾在主桅上。two-masted vessel square-rigged on the foremast and fore-and-aft rigged on the mainmast.
- 右下角lower right corner
- 四角foursquare
- 有斜或坡形方向，路径或位置的--既不平行也不垂直也无直角的。slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angular.
- 角制容器一种由动物的角制成的容器，例如装枪药的角制容器A container, such as a powder horn, made from a horn.
