Experimental study of simply supported reinforced concrete beams with circular web openings
腹部开有圆孔的钢筋混凝土简支梁的试验研究
Finite Element Analysis on Hole Radius of Circular-Web Opening Steel Beams
圆形开孔梁中开孔半径的有限元分析
They were round and had a square hole in the center.
它们是圆形的，中间有一个方形的孔。
a single-reed woodwind with a conical bore.
带有一个圆锥孔的单簧木管乐器。
Finite element analysis about the intensity and the stiffness of the elliptical manhole
椭圆形人孔强度和刚度的有限元分析
with sharp-edged perforations for foods (as vegetables or cheese).
有给食物（如蔬菜或奶酪）准备的圆边的孔。
a utensil with a conical ridged center that is used for squeezing juice from citrus fruit.
有从柑橘类水果榨果汁的圆形皱状心孔的器具。
a slender woodwind with a conical bore and a double-reed mouthpiece.
有一个圆锥孔和一个双簧吹口的细的木管乐器。
Finite Element Analysis of the Nozzle Reinforcement Structure of Internal Pressure Cylinder Vessel;
内压圆柱壳体开孔补强结构的有限元分析
configuration of holes
[圆网]孔的结构形态
circular openings not requiring reinforcement
不要求补强的圆形开孔
A circular marking on a peacock's feather.
翎眼孔雀羽毛上的圆圈
"flageolet:a small flutelike instrument with a cylindrical mouthpiece, four finger holes, and two thumbholes."
六孔竖笛:一种有圆柱形吹口、四个指孔和两个拇指孔的小的长笛状乐器.
A small flutelike instrument with a cylindrical mouthpiece, four finger holes, and two thumbholes.
六孔竖笛一种有圆柱形吹口、四个指孔和两个拇指孔的小的长笛状乐器
Round and square perforation plate screens-Thickness of 3 mm and above
GB/T10613-1989板厚≥3mm的圆孔和方孔筛板
British breed having a long silky coat and rounded head with a short upturned muzzle.
英国品种的小獚，有丝状的长毛、圆头并且鼻孔朝上。
a round-headed bolt for timber; threaded along part of the shank; inserted into holes already drilled.
加工木料用的圆头螺栓；部分连杆有螺纹；可以插入事先钻出的孔中。
a disk having a fixed or variable opening used to restrict the amount of light traversing a lens or optical system.
"具有固定或可变孔的圆盘,用来限制穿过透镜或光学系统的光量."