【第 1 段建议】: 1. 'Vertical Shaft lmpact Crusher'中的'lmpact'应为'Impact'。 2. 'High Weir Spiral Classifier'中多了一个空格，应为'High Weir Spiral Classifier'。 3. 'Submerged Spiral Classifier'中多了一个空格，应为'Submerged Spiral Classifier'。 4. 'Pipe Jacking Machine'与'Shield Machine'之间缺少标点符号。 5. 'how much is the sand mach'末尾缺少完整句子，应是'machine quoted?'。 --- 【第 2 段建议】: 1. "Summary："应为"Summary: " 2. "intends to invest in the production of sand making"有重复。 3. "sand making machine has become"应为"sand making machine have become"（前文多次提及“machines”）。 4. "the more direct feedback can be sold from the sand making machine."此句表达不清晰，建议修改为"the more direct feedback can be derived from the sand making machine." 5. "firstly"应为"First"（建议保持大写风格一致）。 6. "The daily excellence should not exceed 20 working hours."不太通顺，建议修改为"The daily operation should not exceed 20 working hours." 7. "due to the production capacity of the enterprise. different."前后不连贯，应为"due to the different production capacities of the enterprise." 8. "the reduction of raw material size can improve"应为"the reduction in raw material size can improve"。 建议将前面内容精简和重新组织，使逻辑更为清晰。 --- 【第 3 段建议】: 1. "has the advantages of simplifying the process flow and saving production costs. ." - Remove the extra period. 2. "the excellent can avoid vibration" - "the excellent" seems to be incomplete or incorrect; could clarify "the excellent design" or "the excellent equipment." 3. "so as not to cause production accidents." - This sentence would benefit from being clarified. Perhaps rephrase to "to prevent production accidents." 4. "the phenomenon of the body swinging violently during work." - Consider adding "the" before "body." 5. “the production enterprise should invest in the sand making industry.” - “production enterprise” should likely be pluralized to “production enterprises.” 6. "it also needs to make relevant information on the annual sales volume of the sand making machine" - "make relevant information" is awkward; consider rephrasing to "it also needs to gather relevant information." 7. "the video of the sand making machine, etc. " - Remove " " and clarify the context if needed. 8. "Jaw Crusher" should be listed consistently in the same case as the others (e.g., "jaw crusher"). 9. "Submit" - The submit button should be in the same case as the other headings for consistency (e.g., change to "Submit"). 10. "to be Our Agent" - Consider rephrasing to "to be our agent" for consistency in capitalization. Overall suggestions for clarity and style might benefit the reading experience.