【第 1 段建议】: 1. "lmpact" 应为 "Impact" 2. "Phone Number" 中的 "other" 应为 "Other" 3. "Portable Gravel Jaw Crusher Pla" 结尾应为 "Plant" 而不是 "Pla" 其他部分无错误。 --- 【第 2 段建议】: 1. "Gravel is ideal material" should be "Gravel is an ideal material". 2. "the demand of high quality gravel is higher and higher" should be "the demand for high-quality gravel is increasing". 3. "that stationary gravel crushing machines can reach" should be "that stationary gravel crushing machines cannot reach". 4. "we also provides various other portable crushing plant" should be "we also provide various other portable crushing plants". 5. "Our engineer will recommend suitable model" should be "Our engineer will recommend a suitable model". 6. "the 10 Best Ship Loader Manufacturers in The World" should be "the 10 Best Ship Loader Manufacturers in the World" (lowercase 'the'). --- 【第 3 段建议】: 1. "Demand(multiple):" 应为 "Demand (multiple):"（在"Demand"和"("之间加一个空格） 2. "brochures, catalogs）" 中的右圆括号应为英文格式的右圆括号")" 3. "EPCO Service" 应为 "EPC Service"（这里"EPCO"可能是个误拼） 4. "Sales Hotline: 0086-21-58386189" 和 "0086-21-58386176" 之间缺少连接词，可以加个“和”字更好理解。