您要查找的是不是：
- Design of Low-pass Elliptic Filter on DDS 基于DDS的低通滤波器的设计与实现
- Design of Low-pass Elliptic Filter in Signal Source Based on DDS DDS信号发生器中椭圆低通滤波器的设计
- You need to filter the drinking water. 你需要把饮用水过滤。
- A filter traps dust from the air. 过滤网可存住空气中的尘埃。
- 2) Advanced design of ELLIPTIC filter, well compensating for the deficiencies in the medium frequency band. 2) 先进的ELLIPTIC 设计，很好地弥补了中频段的缺陷。
- The news of the defeat started to filter through. 战败的消息开始传出来。
- It won't take long to filter the coffee. 用不了多少时间就可以把咖啡过滤好。
- I took this picture with a red filter. 这张照片我是用红色滤光镜拍摄的。
- We usually clear the water with a filter. 我们通常用过滤器使水净化。
- The rotation in the elliptic is retrograde. 在椭圆内的运动属于逆进型。
- Put the coffee in the filter and let the water run through. 把咖啡倒入滤器里让水流过。
- The filter cleans the fuel before it enters the engine. 在燃料进入发动机之前，过滤器先把它过滤。
- Layered gravel and charcoal to make a filter. 将砂砾和木炭分层以做成过滤器
- The Earth's path round the sun is elliptic. 地球绕太阳的轨迹是椭圆的。
- Nutlet is Brown, long elliptic, have 3 edge. 小坚果褐色,长椭圆形,具3棱。
- The dialogue is elliptic and full of dark hints. 这次谈话很简单，充满了模糊的暗示。
- Sepals 5, petaloid, white, elliptic. 萼片5，瓣状，白色，椭圆形。
- Anthers elliptic, ca. 0.5 mm.Gynostemium 6-lobed. 花药椭圆形，约0.;5毫米。
- Leaf blade usually ovate to elliptic, or obovate. 叶片通常卵形的到椭圆形，或倒卵形。
- Staminodes narrowly elliptic, 5--6 mm. 退化雄蕊狭椭圆形，5-6毫米。
