N-COUNT A retaining wall is a wall that is built to prevent the earth behind it from moving. 护墙; 挡土墙
Well-built, properly draining redwood retaining walls can last 20 years or more.
建造得不错,适当排水红木挡土墙可以持续20年或更多。
Manufactured concrete masonry blocks have stood the test of time as a core building material for retaining walls.
制造混凝土砌块块经受作为挡土墙核心建筑材料了时间的考验。
Poured concrete retaining walls work well where heavy or unstable soil and steep slopes make other walls inadvisable.
现浇混凝土挡土墙以及在繁重的工作或不稳定的土壤和陡坡作出其他墙壁不明智的。
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