sacker weigher

例句：

1. 1. The scale is accurate tothe nearest half-pound.
   这个秤准确到半磅。
2. 2. The balance of the scale isoff.
   秤的平衡失调了。
3. 3. The weigherwas used to weigh the goods before theywere shipped.
   称重员在货物装船前使用它来称重。