washbox discharge sill

例句：

1. 1.The engineer designed a new type of washbox discharge sill for the factory.
   工程师为工厂设计了一种新型的洗箱排放槽。
2. 2. The engineer made sure that the newwashbox discharge sill was installed correctly.
   工程师确保新安装的洗箱排放槽正确无误。
3. 3. The engineer tested the new washbox discharge sill to ensure its effectiveness.
   工程师测试了新的洗箱排放槽，以确保其有效性。