1.
Chinese ancient copper coins have a square hole inside a circle.
中国古代铜钱的形状是外圆内方的。
2.
Calculation Method of Axial Bearing Capacity of Concrete-filled Square Steel Tubular Columns Reinforced by Inner Circular Steel Tube
外方内圆钢管混凝土轴压承载力计算方法
3.
The square wall represents the Earth, and the round one, the Heaven. Legend has it that the Heaven is round and the Earth is square.
外侧墙是方的。而内侧墙是圆的。圆墙代表天，方墙代表地，传说天是圆的，地是方的。
4.
Improvement of solid cage processing method of inner and outer double locking ports with round holes
内、外双锁口圆孔实体保持架加工方法的改进
5.
INVESTIGATION ON BEARING CAPACITY OF SOLID MULTIBARREL TUBE-CONFINED CONCRETE COLUMNS(CHS INNER AND SHS OUTER)UNDER ECCENTRIC COMPRESSION
内圆外方实复式钢管混凝土柱偏压承载力研究
6.
Internal and External Common Tangent Circles of Three Circles Which Are Externally Tangent Each Other;
三个两两相外切圆的内公切圆与外公切圆
7.
internal and cylindrical centerless grinder for pistone ring
活塞环内外圆无心磨床
8.
circumscribe a square
画正方形的外接圆.
9.
The second layer in a concentric circle drawing. Fits between Concentric Layer 1 and Concentric Layer 3.
同心圆绘图的第二层。与同心圆第1层的内圆和同心圆第3层的外圆相吻合。
10.
The third layer in a concentric circle drawing. Fits between Concentric Center and Concentric Layer 2.
同心圆绘图的第三层。与同心圆中心层的外圆和同心圆第2层的内圆相吻合。
11.
4 cases were subdural teratoma,2 in conus medullaris teratoma.
髓外硬膜下 4例 ,脊髓圆锥内 2例。
12.
Extremal properties on inscribed (circumscribed) polygons of a circle;
圆内接(外切)多边形面积的极值性质
13.
Area Formula of the Polygon of Inscribed or Circumscribed Ellipse;
椭圆内接(外切)多边形的面积公式
14.
Fabrication and study of exterior trochoid (hypocycloid) demonstration instrument
圆外(内)旋轮线演示仪的制作及研究
15.
A study on NC mathematical model of the internal and external three prism milling
三棱形内外圆磨削数控数学模型研究
16.
a circle that rolls around (inside or outside) another circle; generates an epicycloid or hypocycloid.
绕着另一个圆圈（里面或外面）滚转的圆圈；产生外摆线或内摆线。
17.
that could be seen for miles around.
一颗方圆数十里外都看得见的巨星。
18.
There was not a single tree for four or five miles round.
方圆四五英里之内，一棵树也没有。