technicalTIMTBC a surface of stone or other building material added for strength to a wall that holds back loose earth, water etc 护墙；护坡；护岸
Examples from the Corpus
revetment• Beside a dangling traffic light outside, an earth revetment was sprouting bushes.• Half way through the afternoon I went to see how the lakeside revetment was going.
Originrevetment
(1700-1800)Frenchrevêtement, from revêtir“to put clothes on again”