笔芯的正确安装与更换方法 一、正确安装笔芯 1. 准备工具：新笔芯、笔杆。 2. 检查笔芯和笔杆是否匹配：确保笔芯的型号与笔杆相匹配，避免安装错误。 3. 去除笔芯外包装：小心地拆下新笔芯的外包装或保护帽。 4. 安装笔芯：将笔芯插入笔杆，直到感觉其牢固固定。请勿强行推入或扭转，以免损坏笔杆或笔芯。 二、更换笔芯 1. 准备工具：新笔芯、纸巾或抹布（用于擦拭笔杆）。 2. 确定更换时机：当笔芯的墨水用尽时，应及时更换。注意不要在墨水还剩余很多时更换，以免浪费。 3. 取出旧笔芯：握住笔杆的合适位置，轻轻旋转并拔出旧笔芯。注意不要用力过猛，以免墨水溅出。 4. 清洁笔杆：用纸巾或抹布擦拭笔杆内部和外部的墨水痕迹，确保新笔芯的安装环境干净。 5. 安装新笔芯：按照上述“正确安装笔芯”的步骤进行安装。确保新笔芯的型号与笔杆匹配，并正确安装。 【翻译成英文】 Correct Installation and Replacement of Pen Refills I. Correct Installation of Pen Refill 1. Preparation: New pen refill, pen barrel. 2. Check for Matching: Ensure that the model of the pen refill matches the pen barrel to avoid installation errors. 3. Remove the Packaging: Carefully remove the outer packaging or protective cap from the new pen refill. 4. Install the Pen Refill: Insert the pen refill into the pen barrel until it feels securely fixed. Do not force it in or twist it to avoid damaging the pen barrel or refill. II. Replacement of Pen Refill

1. Preparation: New pen refill, paper towel or cloth (for cleaning the pen barrel).

2. Timing: Replace the pen refill promptly when the ink is used up. Do not replace it when there is still a lot of ink left to avoid waste. 3. Remove the Old Pen Refill: Hold the pen barrel at an appropriate position and gently rotate and pull out the old pen refill. Be careful not to use too much force to avoid ink splashing out. 4. Clean the Pen Barrel: Use a paper towel or cloth to wipe off any ink stains on the inside and outside of the pen barrel to ensure a clean environment for installing the new pen refill. 5. Install the New Pen Refill: Follow the steps for "Correct Installation of Pen Refill" above. Ensure that the model of the new pen refill matches the pen barrel and is installed correctly.