Anh
reading index
Đức
Ableseindex
Ablesemarke
Ablesestrich
Index
Marke
Zeiger
Pháp
index de lecture
Ableseindex,Ablesemarke,Ablesestrich,Index,Marke,Zeiger /SCIENCE/
[DE] Ableseindex; Ablesemarke; Ablesestrich; Index; Marke; Zeiger
[EN] reading index
[FR] index de lecture