【第 1 段建议】: 1. “Sand Making Machine” should be "Sand-Making Machine". 2. “lmpact” should be "Impact" (incorrect character 'l'). 3. “其他” should be “Other” (in the context of the list). 4. "EPCO" may need clarification or capitalization depending on context; if it is an acronym, ensure it fits the standard. 5. "The" is missing before "More Languages" in the section heading. 6. "Life-cycle" may better be written as "Lifecycle" for consistency in format. 7. There is a random space before "中文" which should be removed. (Note: Points 3, 4, and 6 depend on specific context and style preferences, so their validity may vary accordingly.) --- 【第 2 段建议】: 1. "the demand of manufactured sand exceeds supply in aggregates industry" 应为 "the demand for manufactured sand exceeds the supply in the aggregates industry"。 2. "the case of limited natural sand resource" 应为 "the case of limited natural sand resources"。 3. "the demand for aggregates is increasing due to the development of infrastructure" 需要在 "infrastructure" 后添加句号。 4. "a kind of hot aggregates" 应为 "a kind of hot aggregate"。 5. "are care about it" 应为 "care about it"。 6. "how we choose sand making equipment" 后面的句子需改为 "However, there are so many sand making machines on the market, which one do we need?"。 7. "equip three important parts" 应为 "equipped with three important parts"。 8. "high efficient dust removal" 应为 "high-efficiency dust removal"。 9. "the sand making machine can shape sand or not?" 应为 "the sand making machine can shape sand or not?"（该句不应加问号）。 10. "if the sand maker can’t shape aggregates" 应为 "if the sand maker can’t shape aggregate"。 11. "long-term operation will damage the inner parts of sand maker" 应为 "the inner parts of the sand maker"。 --- 【第 3 段建议】: 1. "long time" should be "a long time". 2. "sand making machine" should be "sand making machines" in "there are still many sand making machine can’t meet". 3. "has steady" should be "has remained steady". 4. "some wearing parts is prolonged" should be "the service life of some wearing parts is prolonged". 5. "impeller and the bearing cylinder needs" should be "impeller and the bearing cylinder need". 6. "since it launched" should be "since it was launched". 7. "right one" should be "the right one". 8. "to help you" should be "to help you with your needs". 9. "WhatsApp" is inconsistent in formatting; ensure consistent capitalization. 10. "Stone Crusher Machin" should be "Stone Crusher Machine".