为了添加或更新系统缺省数据，您应该运行4ss自带的脚本populate . py。

To add or update the system default data, you should run the script populate.py.

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该管道还自带清洗和冲水系统，来保持管道的干净。

It also has a cleaning and flushing system to keep the pipe clean.

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该管道还自带清洗和冲水系统，来保持管道的干净。

It also has a cleaning and flushing system to keep the pipe clean.

youdao