【第 1 段建议】: 1. "lmpact" 应为 "Impact" (字母 "l" 应为 "I")。 2. "Products" 部分中，"Crushing & Screen" 应为 "Crushing & Screening"。 3. "EPCO" 前缺少一个空格，应该确保是 "EPCO"。 4. "High Weir Spiral Classifier" 中的两个空格应为一个。 5. "Submerged Spiral Classifier" 中的两个空格应为一个。 6. "Mobile Demand" 上下文不太清晰，建议确认是否需要更改或补充说明。 其他方面无错误。 --- 【第 2 段建议】: 1. "hich"应为"Which" 2. "used"应为"used to be" 3. "of the second degree of fine crushing"应为"fine crushing of the second degree" 4. "but to carefully observe them or have a great difference"应为"but if you carefully observe them, they have great differences" 5. "It is improved on the traditional cone crusher system"应为"It has been improved upon from the traditional cone crusher system" 6. "the material is crushed"应为"the material is crushed using" 7. "The material particles treated by it"中的多余空格应删除 8. "low content of needle-flake"应为"low content of needle-like particles" 9. "the treatment of stone crushing also has different characteristics"中的 "the treatment of stone crushing"建议改为"the treatment of stone crushing processes" 10. "soft stones"应为"soft rock" 11. "weathered rock,"中的逗号应为"weathered rock etc." 12. "the treatment effect of cone crusher is not as good as that of impact crusher"应为"the treatment effect of the cone crusher is not as good as that of the impact crusher" 13. "as pebbles will not produce too much wear and tear"应为"as pebbles do not produce too much wear and tear" 14. "can create higher economic benefits for investors"应为"can generate higher economic benefits for investors"