短語詞組短語submerged rigid vegetation 淹沒剛性植物submerged flexible vegetation 淹沒柔性植物Submerged Aquatic Vegetation 水下水生植物群;耐鹽沉水植物;沉水植物submerged vegetation zone 沈水植被帶;沉水植被帶non -submerged vegetation 非淹沒植被constructed submerged vegetation bed 人工沉床 返回 submerged vegetation