【第 1 段建议】: 1. "what's" should be capitalized to "What's". 2. "portab" seems to be an incomplete word and should likely be "portable". 3. The question mark should be at the end of the whole sentence: "What's portable crushing plant advantages?" should be "What are the advantages of a portable crushing plant?" 4. "Advantages" is plural, so the subject should align with that ("are" instead of "is"). Corrected sentence: "What are the advantages of a portable crushing plant?" --- 【第 2 段建议】: 1. "le"应为"The"。 2. "the aircraft"应为"the plant"以保持前文一致性。 3. "make the logistics transport more direct and effective"应为"makes the logistics transport more direct and effective"以保持主谓一致性。 4. "Constructi"应为"Construction"。 --- 【第 3 段建议】: 1. "Demand(multiple):" 应为 "Demand (multiple):"（缺少空格） 2. "brochures, catalogs）" 应为 "brochures, catalogs）"（右括号前应为英文括号） 3. "WhatsApp:+86 13761974616" 应为 "WhatsApp: +86 13761974616"（缺少空格） 4. "Sales Hotline: 0086-21-58386189" 后的行应在相同格式中继续（缺失统一性） 5. "Website Map|Legal Notice|Contact Us" 应为 "Website Map | Legal Notice | Contact Us"（缺少空格） 6. "function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':" 此行代码中的空格与格式不一致，但可能是代码块 7. "for(var i=0;i-1)" 的条件部分可能是个错误，应为 "for(var i=0;i<tags.length;i++)" （逻辑错误） 其余内容无错误。