post parcel scale

例句：

1. 1.The postal service uses a post parcel scale to weigh packages before they are sent.
   邮政服务使用邮包秤来在包裹发送前称重。
2. 2.The postal worker used the post parcel scale to check the weight of the package.
   邮递员使用邮包秤检查包裹的重量。
3. 3. The postal department has implemented a new post parcel scale system to improve efficiency.
   邮政部门实施了一种新的邮包秤系统，以提高效率。