【第 1 段建议】: 1. "Vertical Shaft lmpact Crusher" 中的 "lmpact" 应为 "Impact"。 2. "EPCO" 应为 "EPC"（如果这是一个拼写错误的话，EPC是常见的缩略词）。 3. "中文" 后的标点应为中文句号，而不是英文句号（如果在上下文中需要）。 4. “More Languages” 后无标点，应为“More Languages:”。 其余部分无错误。 --- 【第 2 段建议】: 1. "1Stone" -> "1 Stone" (missing space) 2. "Equipments" -> "Equipment" (equipment is uncountable) 3. "wear-resis" -> "wear-resisting" (incomplete word) 4. "looseness, fracture, abrasion, etc. are" -> "looseness, fracture, abrasion, etc. is" (subject-verb agreement) 5. "sand making machine" -> "sand-making machine" (hyphen needed) 6. "growing demand for aggregates, the application" -> "growing demand for aggregates; the application" (semicolon preferred for clarity) 7. "performa" -> "performance" (incomplete word) --- 【第 3 段建议】: 1. "aggregates mainly comes" 应为 "aggregates mainly come" 2. "equipment in market" 应为 "equipment in the market" 3. "there are still many people are not" 应为 "there are still many people who are not" 4. "first thing we considered" 应为 "first thing we consider" 5. "Higher quality it is" 应为 "The higher quality it is" 6. "new enter the industry" 应为 "newly enter the industry" 7. "There are so many grinding mill in the market" 应为 "There are so many grinding mills in the market" 8. "In recent year" 应为 "In recent years" 9. "investors concerned about" 应为 "investors are concerned about" 10. "are placed in the coarse crushing machine" 应为 "are placed in the category of coarse crushing machines" 11. "commonly used for making sand" 应为 "commonly used to make sand" 12. "common production equipment of sand making plant" 应为 "common production equipment for sand making plants" --- 【第 4 段建议】: 1. "any users are concerned about is how much a set of sand making machine will cost." - "machine" should be plural: "machines". 2. "SBM's HPT Cone Crusher, You Are My SUPER MAN" - "You Are My SUPER MAN" should be lowercase after the comma for consistency in title case. 3. "3 tips to help you solve the problem of blockage of vibrating screen" - "the vibrating screen" for specificity. 4. "Screen is a very important part of the vibrating screen." - "Screen" should be "The screen". 5. "With constantly development and upgrading of technology," - "constantly" should be "constant". 6. "there are more and more strict requirements in the selection of equipment." - "more and more strict" should be "increasingly strict". 7. "the booming of mobile crusher last?" - "mobile crusher" should be "mobile crushers". 8. "2019 is a very special year for aggregates industry." - "aggregates industry" should be "the aggregates industry". 9. "the most hot-sale equipment in the market?" - "hot-sale" should be "hot selling" or "best-selling". 10. "How to do good protection for grinding mill during the rainy season?" - "grinding mill" should be "the grinding mill". 11. "nearly 30 provinces and" - Sentence is incomplete. 12. "Materials (brochures, catalogs）" - Parenthesis should be corrected: "Materials (brochures, catalogs)". 13. "Submi" - Incomplete word; should be "Submit".