rocky bed,rocky channel /SCIENCE,BUILDING/
[DE] Felssohle
[EN] rocky bed; rocky channel
[FR] lit rocheux
rocky bed,rocky channel
[DE] Felssohle
[EN] rocky bed; rocky channel
[FR] lit rocheux
boulder bed,cobble bed,rocky bed /SCIENCE/
[DE] Felssohle
[EN] boulder bed; cobble bed; rocky bed
[FR] fond rocheux