【第 1 段建议】: 1. "Vertical Shaft lmpact Crusher" - "lmpact"应为"Impact"（字母"L"应为大写"I"）。 2. "SMP Crushing Plant" - "SMP"前未见使用空格。 3. "Bucket-wheel Reclaimer" - "Bucket"-"wheel"之间的连字符应为“bucket wheel”或者“Bucket Wheel”。 4. "Wheeled Bulk Reception Feeder" - "Wheeled"应为“小写”。 5. "Radial Telescopic Stacker" - "Radial"-"Telescopic"之间的连字符应为“radial telescopic”或者“Radial Telescopic”。 6. "Pipe Jacking Machine" - "Jacking"应为“小写”。 7. "EPCO" - 如果是公司名应保持全大写，否则未明确缩写含义，建议用户提供更具体信息。 8. 整体格式中存在空格数量不一致的现象，建议规范化。 以上为检查发现的问题。 --- 【第 2 段建议】: 1. “1Stone Crusher in Ethiopia” 应为 “1 Stone Crusher in Ethiopia” (缺少空格) 2. “7 Types of Stone Crusher and How to Choose the Best?” 应为 “7 Types of Stone Crushers and How to Choose the Best?” (石头粉碎机应为复数) 3. “Equipments” 应为 “Equipment” (equipment 为不可数名词) 4. “improve the cleanness of lubrication system” 应为 “improve the cleanness of the lubrication system” (缺少定冠词) 5. “the smooth of lubricating oil circuit” 应为 “the smoothness of the lubricating oil circuit” (需要名词形式) 6. “is not easy to fine this problem” 应为 “is not easy to find this problem” (fine 应为 find) 7. "secondly crushing" 应为 "secondary crushing" (secondly 应为副词，应该用形容词形式) 请修正以上问题。 --- 【第 3 段建议】: 1. "rushing Plant"应为"Rushing Plant"（首字母大写）。 2. "2019-12-09"和其它日期之间应该有空行以增加可读性。 3. "What's portable crushing plant advantages?"应为"What are the advantages of the portable crushing plant?"（语法错误）。 4. "what's the application of grinding mill?"应为"What is the application of the grinding mill?"（语法错误及缺失大写）。 5. "there are a lot of waste material"应为"there is a lot of waste material"（主谓一致错误）。 6. "artificial sand stone is widely used f"中“f”看起来是多余的，后面应有完整的句子。 请注意，标点符号的问题未被单独列出，但某些句子末尾可能需要加上句号以保持一致性。 --- 【第 4 段建议】: 1. "high pressure raymond mill" should be "high-pressure Raymond mill" (hyphenation and capitalization). 2. "there are more different types of demand while increasing demand" - consider rephrasing for clarity; repetition of "demand" is awkward. 3. "WhatsApp" should be formatted consistently (it appears twice, adjust casing if necessary). 4. "Materials (brochures, catalogs）" should have a correct closing parenthesis: "Materials (brochures, catalogs)." 5. "To be Our Agent" should be possibly lowercased for consistency unless it is a title. Note: Adjustments to phrasing for clarity are suggested but not required as errors.