【第 1 段建议】: 1. "lmpact"应为"Impact"（字母“l”应为“I”）。 2. "EPCO"可能是个错误，需确认是否为"EPC"。 3. "Radial Telescopic Stacker"可能用"Stacker"更为合适，检查具体术语。 4. “Mobile Demand”应为“Mobile Demands”以符合上下文中的其他复数形式。 5. “Vibrating Feeder”和“Sand Washer”之间的标点缺失，建议添加逗号。 其他部分无错误。 --- 【第 2 段建议】: 1. "affect" should be "affecting" in "the factors affect the bearing vibration". 2. "about the bearings" should be "about bearings" in "research about the bearings". 3. "the bearings vibration" should be "the bearing vibration" for consistency. 4. "properly choose type and physical dimension of bearings" should be "properly choose the type and physical dimensions of bearings". 5. "needle bearing" should be "needle bearings" for consistency as it refers to a type. 6. "ball bearing" should be "ball bearings" for consistency. 7. "tapered roller bearing" should be "tapered roller bearings" for consistency. 8. "spherical roller bearing" should be "spherical roller bearings" for consistency. 9. "Good lubrication of bearings can improve the frictional behavior of rolling elements, raceway and retainer." should have a comma before "and retainer". 10. "the adding volume of lubricating grease or lubricating oil" should be "the added volume of lubricating grease or lubricating oil". 11. "Too much lubricating oil will cause the agitation of lubricating oil in bearings when the bearings rotate with high speed, inducing contact resonance." can be clarified; consider rephrasing for clarity. Please revise the text accordingly. --- 【第 3 段建议】: 1. "the raceway deforms" should be "the raceway deformed". 2. "causing the vibration increase." should be "causing the increase in vibration." 3. "the oil film at contact of bearing and bearing hole" should be "the oil film at the contact of the bearing and the bearing hole". 4. "the harshness and allowable error of bearing journal that coordinates with the inner ring bearing" should be "the harshness and allowable error of the bearing journal that coordinates with the inner ring bearing". 5. "the deviation of journal" should be "the deviation of the journal". 6. "too tight, then even the bearings have high accuracy" should be "too tight; then even if the bearings have high accuracy". 7. "the control of magnitude while assemble." should be "the control of magnitude while assembling." 8. "the vibration f bearings" should be "the vibration of bearings". 9. "the increasing of thickness of wall" should be "the increase in thickness of the wall". 10. "by changing the axial thickness and its shape" should be "by changing the axial thickness and its shape," (missing comma before "and"). 11. "reduce the vibration of bearing." should be "reduce the vibration of the bearing." 12. "with the inner ring bearing" should be "with the inner ring of the bearing." --- 【第 4 段建议】: 1. "Demand(multiple):" 应为 "Demand (multiple):" 2. "Materials (brochures, catalogs）" 应为 "Materials (brochures, catalogs)"（应使用英文的右括号）。 3. "Copyright © 2026 Shanghai Shibang Machinery Sales Co., Ltd." 中年份 "2026" 应为当前年份 "2023"（假设文本是在2023年创建的）。