您要查找的是不是：
- The first octave above the treble staff. 高八度高音谱度上方第一个八度
- Can you span an octave on the piano? 乍能按到钢琴的八个键吗？
- 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。
- 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 child's hands are too small to stretch to an octave on the piano. 这孩子的手太小，按不到钢琴上八度和音的键。
- Pitched in the first octave above the treble staff; high. 高音调的，高八度的高音谱表上方第一个八度的; 高音调的
- A small flute pitched an octave above a regular flute. 短笛一种音调比普通笛子高八度音的小笛子
- third octave filter 1/3倍频程滤波器
- A note or tone in the alt octave. 高八度音符，高八度音调高音谱表上方八度音中的一个音符或音调
- 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。
- octave filter set 倍频程滤波器
- Layered gravel and charcoal to make a filter. 将砂砾和木炭分层以做成过滤器
- These notes are an octave apart. 这些音相距八度.
- He's singing an octave lower than the rest of us. 他唱的比我们其他人都低八度。
- Can you span an octave on the piano ? 你一壳乍能按到钢琴的八个键吗?
