clef

n.

音部记号；

复数：clefs

1. Please name the notes below according to the clef.
   请依谱号写出下列音符的音名。
2. Each clef is shown in its proper position on the staff, followed by its reference note.
   每一种谱号表示了接下来的音符所在的位置代表了什么音高。
3. The G clef and the piano keys on the wall represent the music which I loved since I was a kid.
   墙上的高音谱号和琴键图案代表着我自小便喜爱的音乐。

The CLEF 2004 cross-language image retrieval track
The CLEF 2005 Cross–Language Image Retrieval Track
The CLEF cross language image retrieval track (ImageCLEF) 2004
Overview of the CLEF 2004 Multilingual Question Answering Track
Overview of the CLEF 2004 Multilingual Question Answering Track
Overview of the CLEF 2005 Multilingual Question Answering Track
Overview of the CLEF 2006 multilingual question answering track
Overview of the CLEF 2004 Multilingual Question Answering Track.
GeoCLEF: the CLEF 2005 cross-language geographic information retrieval track overview
GeoCLEF 2007: The CLEF 2007 Cross-Language Geographic Information Retrieval Track Overview