您要查找的是不是：
- A circular opening in an opaque screen transmits only a small circular patch of a wave surface. 不透明屏上一个圆孔仅仅透射波面的一小圆块。
- The apparently black circular opening in the center of the iris of the eye, through which light passes to the retina. 瞳孔暴露于眼睛虹膜中央明显的黑色圆形，光线通过此孔才能达到视网膜
- The circular opening in a needle that carries the top thread through the fabric and into the bobbin assembly. 针里面的圆形开口,带着顶端针穿过织物,进入线轴组合里。
- The circular opening, or oculus, was intended as the source of light for the building's interior. 圆型开孔是为了建筑内部的光源有意开设的。
- The building and plaza serve as the centerpiece of the District, while the plaza design elements rotate off a central circular open space. 该大学城中心建筑与广场是此校区的核心项目，其设计理念巧妙地偏离了那以某处为中心的环形开发空间。
- A circular opening or window. 圆孔或圆窗
- A small, circular or crescent-shaped opening in a vaulted roof. 半圆壁，弧形窗在高高的屋顶上的小的，圆的或新月形的开口
- We can compute the circular area with radius. 我们能用半径计算出圆的面积。
- The full moon has a circular form. 满月呈圆形。
- Pea pods burst open when overripe. 豌豆过熟就会爆裂。
- circular openings not requiring reinforcement 不要求补强的圆形开孔
- Open tender for purchasing power transformer. 公开招标购买电力运输设备。
- We bivouacked on the open plain. 我们在开阔的原野上露营。
- I'm not satisfied with his circular explanation. 我不满意他拐弯抹角的解释。
- The full moon has a circular shape. 满月呈圆形。
- The organization issues a circular every month. 该组织每月发一份通告。
- I had to use force in opening the door. 我不得不用力开那一扇门。
- This little gadget's great for opening tins. 这小玩意儿开罐头挺好用。
- She's go to play the opening bar of the sonata. 她准备演奏这支奏鸣曲的开始数小节。
- Two smaller screens will be opening in May. 五月份将有两家小型电影院开业。
