The invention is used to heat digester pool.
本发明用于沼气池加热中。
It is not necessary to empty out the digester in stops lower than one week.
如停机一周以内，下次再开机时不用清空蒸煮管。
You can see that the commons-digester-1.6.jar file resides in the commons-digester/commons-digester/1.6 directory.
在 commons-digester/commons-digester/1.6目录中可以看到 commons-digester-1.6.jar文件。
You can see that the commons-digester-1.6.jar file resides in the commons-digester/commons-digester/1.6 directory.
在 commons-digester/commons-digester/1.6目录中可以看到 commons-digester-1.6.jar文件。
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