【第 1 段建议】: 1. "Cleanness" should be "Cleanliness". 2. "6 Way" should be "6 Ways". --- 【第 2 段建议】: 1. “cleanness” 应为 “cleanliness” (拼写错误) 2. “the smooth of lubricating oil circuit” 应为 “the smooth operation of the lubricating oil circuit” (语法错误) 3. “the normal lubrication of the friction pairs” 应为 “the normal lubrication of the friction pair” (单复数错误) 4. “the dust producing in beneficiation plant” 应为 “the dust produced in the beneficiation plant” (语法错误) 5. “check if the sieve in filter is in good condition” 应为 “check if the sieve in the filter is in good condition” (缺失的冠词) 6. “Once find broken” 应为 “Once found broken” (语法错误) 7. “the it meets standard for continue use” 应为 “it meets the standard for continued use” (语法错误) 8. “Irregularly Clean& Wash The Lubrication System” 应为 “Irregularly Clean & Wash The Lubrication System” (格式错误，根据上下文应该有空格) --- 【第 3 段建议】: 1. "lubrication system, or the mining machine hasn¡¯t" -> "lubrication system, or the mining machine hasn’t" (incorrect character encoding) 2. "long time" -> "a very long time" (missing article) 3. "oxidizes serious" -> "oxidizes seriously" (adverb form needed) 4. "the oil temperature is about 30 ¡æ~ 40 ¡æ" -> "the oil temperature is about 30 ~ 40 °C" (incorrect character encoding and symbol usage) 5. "discharge the original lubricating oil as much as possible." -> "discharge the original lubricating oil as much as possible." (clarity: it might be clearer if rephrased to "as much of the original lubricating oil as possible.") 6. "dismantle" -> "dismantled" (incorrect verb form) 7. "adding cover to the oil tank" -> "adding a cover to the oil tank" (missing article) 8. "added air sealing device in jaw crusher etc." -> "adding an air sealing device in the jaw crusher, etc." (missing articles and punctuation) Additional changes can improve clarity but are not strictly errors. --- 【第 4 段建议】: 1. "Demand(multiple):" 应改为 "Demand (multiple):" （在“Demand”和“(multiple)”之间需加空格） 2. "WhatsApp:+86 13761974616" 应改为 "WhatsApp: +86 13761974616" （在“WhatsApp:”和“+86”之间需加空格） 3. "0086-21-58386189" 和 "0086-21-58386176" 之间需加空行以分隔 4. "Website Map|Legal Notice|Contact Us" 应改为 "Website Map | Legal Notice | Contact Us" （“|”两边需加空格） 5. "for PPC参数传递" 应改为 "for PPC 参数传递" （“PPC”和“参数传递”之间需加空格）