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- At one time circular ducts were very expensive to manufacture. 有一段时期圆管制作非常昂贵。
- Technique and die design for hole punching on circular duct 圆管冲孔工艺与模具设计
- 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。
- 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。
- Carrying down or away. Used of a duct or vessel. 传送的指通过导管或管道传送下来的或输送的
- Something of circular form; a circle or an orbit. 圆形物体圆形物体; 圆圈或环形轨道
- An instrument that measures circular arcs. 圆弧测定器一种用于测定圆弧的仪器
- hole punching on circular duct 圆管冲孔
- circular duct 圆截面导管
- A duct often contains cross braces. 管道内往往是有支撑拉条。
- A circular or spiral motion, especially a circular ocean current. 游涡一种圆形或螺旋形的运动，特别是做圆环运动的海水水流
- A tube or duct for enclosing electric wires or cable. 线管包裹电线或电缆的管子或沟道
- A painting or an engraving set in an oval or circular frame. 圆形浮雕镶嵌于椭圆形或圆形框架中之绘画或雕刻
- Have you seen that circular from the new furniture centre? 你见到那家本地新开的家俱总汇的广告了吗？
- 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
- A/C duct and vent duct structure of W/H Deck. 驾驶甲板空调、机械风管结构。
- Maybe you have never heard of duct tape. 也许你还没有听说过管道胶带吧。
