adjustment test of water treatment equipment

例句：

1. 1.The engineer conducted an adjustment test on the new machine before it was put into operation.
   工程师在机器投入使用前对其进行了调整试验。
2. 2.The adjustment test showed that the new software would be more user-friendly than the previous version.
   调整试验显示，新软件将比之前的版本更用户友好。
3. 3. The adjustment test revealed a significant improvement in performance over the previous model.
   调整试验显示，与之前型号相比，性能有显著提升。