以下是文案中的拼写错误、单复数误用及标点错误： 1. **拼写错误**: - "sand-making" 应改为 "sand making"（需保持一致，无连字符） - "lmpact" 应改为 "impact"（首字母的拼写） - "enclosed structure" 中的 "ensure" 应改为 "ensures"（主谓一致） 2. **单复数误用**: - "the construction unit not only have huge demand" 应改为 "the construction unit not only has huge demand"（主谓一致） - "which has brought great economic benefits to customer" 应改为 "which has brought great economic benefits to the customer"（加定冠词） 3. **标点错误**: - "mm(stone powder),0.075—5mm(manufactured sand)" 应添加空格与逗号，如 "mm (stone powder), 0.075—5 mm (manufactured sand)"（增加可读性） - "no wastewater, sludge, dust and noise" 应改为 "no wastewater, sludge, dust, and noise"（在"and"之前添加逗号，即牛顿逗号） - "Compact Structure Save Footprint" 应加上标点，如 "Compact Structure: Save Footprint"（冒号分隔标题与内容） - "function(w,d,s,l,i){w[l]=w[l]||[];w[l].pu" 代码末尾未完整，未闭合的函数应被检查。 请对上述问题进行修改以提高文案质量及准确性。