【第 1 段建议】: 1. "lmpact" should be "Impact" (capital 'I' instead of lowercase 'l'). 2. "Tower Sand-making System" should be "Tower Sand-making System" (considering it is a proper noun, capitalization is acceptable, but context is required for correctness). 3. "th" at the end appears to be an incomplete word or misprint, should be addressed based on the complete context. 整体来说，考虑到上下文，"th"可能是个错误，需集成到句子中以确保准确性。 --- 【第 2 段建议】: 1. "With constantly development"应为"With constant development" 2. "kinds"需改为"types" 3. "combined sand making machine"首字母需大写为"Combined sand making machine" 4. “the humidity doesn’t exceed 15%,”中的引号应为英文标准引号，即“the humidity doesn’t exceed 15%,” 5. “for example, limestone, coal.”中的"coal."后需加句号 6. "roller sand making machine"首字母需大写为"Roller sand making machine" 7. "the price of roller sand making machine is relatively low among similar products,"需改为"the price of the roller sand making machine is relatively low among similar products," 8. "impact sand making machine"首字母需大写为"Impact sand making machine" 9. “with very high cost performance”应为“with very high cost-performance” 10. "its advantage is that it has very good sand making effect and high efficiency."中的"effect"后需加逗号，以连接后半句"and high efficiency." 11. "this is a "movable" sand making production plant."应为"this is a "movable" sand making production plant." 12. "Mobile sand making machine can be divided into crawling sand maker and wheeled sand maker,"应为"Mobile sand making machines can be divided into crawling sand makers and wheeled sand makers," 13. “with high sand making efficiency”中的"high sand making efficiency"需加句号。 --- 【第 3 段建议】: 1. "sand making machine" 应为 "sand making machines" (复数形式)。 2. "sand making equipment or crusher" 应为 "sand making equipment or crushers" (复数形式)。 3. "leave you massage" 应为 "leave your message" (拼写错误)。 4. "Get Price More" 建议去掉"More"，以避免不完整的表达。 5. "WhatsApp" 应为 "WhatsApp:"（冒号缺失）。 6. "Demand(multiple):" 应为 "Demand (multiple):"（空格缺失）。 7. "Materials (brochures, catalogs）" 应为 "Materials (brochures, catalogs)"（右括号应为半角）。 8. "Copyright © 2026" 应为 "Copyright © 2023"（年份错误，应为2023）。