standard pan

例句：

1. 1.The standard pan is used to measure the length of a rod.
   标准盘用于测量杆的长度。
2. 2.The engineer used the standard pan to check the accuracy of the measurements.
   工程师使用标准盘来检查测量的准确性。
3. 3.The standard pan was used in the construction of the bridge.
   标准盘在桥梁的建设中使用。