【第 2 段建议】: 1. "Generally, there is mainly divided into three aspects" 应改为 "Generally, it is mainly divided into three aspects". 2. "user should pay attention to the weight" 应改为 "the user should pay attention to the weight". 3. "The choice of grease should be based on the location of use, temperature conditions." 中遗漏 "and" 在 "temperature conditions"前，即修改为 "The choice of grease should be based on the location of use and temperature conditions." 4. "the crusher should be replaced new bearing." 应改为 "the crusher should be replaced with a new bearing." 5. "the mobile crusher break more easily" 应改为 "the mobile crusher breaks more easily". 6. "you need to pay special attention to the following points:" 应改为 "you need to pay special attention to the following points". 7. "users should always pay attention to the maintenance of mobile crusher" 应为 "users should always pay attention to the maintenance of the mobile crusher". --- 【第 3 段建议】: 1. “ipment” 应为 “equipment” 2. “the equipment can be kept in normal operation.” 句子不完整或缺少前文，无法判断正确性。 3. “5 Things You Need to Know about Concrete Crusher” 应为 “5 Things You Need to Know about Concrete Crushers” 4. “WhatsApp” 出现两次，需合并为一次。 5. “After-sales Services & Spare Parts” 应为 “After-sales Service & Spare Parts” （统一单复数形式） 6. “WhatsApp:+86 13761974616” 应在“WhatsApp:”和号码之间添加空格。 7. “Copyright © 2026” 应为 “Copyright © 2023” 如果日期指向当前年份。