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- A circular opening or window. 圆孔或圆窗
- 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。
- A structure built on top of a roof with open or windowed walls to admit light and air. 天窗灯笼式屋顶建在房屋顶部的一种建筑物,带有敞开的或有窗子的墙以通阳光和空气
- Having a circular or spiral motion. 回旋的作圆周或螺旋式运动的
- The full moon has a circular form. 满月呈圆形。
- To move or drive in a circular or curving course. 使回旋使沿圆周或曲线路程运动或驾驶
- 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。
- A molding over a door or window; a dripstone. 门或窗户上面的线脚;滴水石
- A small opening or pore,as of a fruiting body. 小孔小的开口或小孔,如子实体的
- The molding around a door or window. 门窗头线条板门或窗周围的构造。
- A small opening or pore, as of a fruiting body. 小孔小的开口或小孔,如子实体的
- An opening or mouth,as of a river or stream. 出口河流或溪水等的出口
- 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 framed opening, as in a wall, door, or window, fitted with fixed or movable horizontal slats for admitting air and light and shedding rain. 固定百叶窗一个有框架的开口处,比如在一堵墙里,门里或窗户里。安装有固定的或活动的水平条板,用来通风、采光、遮雨
- An opening or mouth, as of a river or stream. 出口河流或溪水等的出口
- An unwanted making and breaking of the connection while opening or closing a contact. 一触点在断开或闭合时造成的一种不希望产生的断断续续的连接状态。
- A circular is being sent round to all the members. 通报正在全体成员之间传阅。
- Orbits of a comet may be open or close. 粗略来说,彗星可以开放或封闭式轨道绕日运行。
- An atoll is a circular reef surrounding a lagoon. 环礁是环绕着一个泻湖的环形礁石。