这些配置文件不是直接由用户操纵的，而是通过DB 2 GUI工具或命令行实用程序的方式进行更新。

These configuration files are not directly manipulated by the user but are updated by means of the DB2 GUI tools or command line utilities.

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尼伯科旋启式止回阀可配置外部操纵杆和压铁。操纵杆和压铁用于对阀瓣进行外部控制。

NIBCO swing check valves are available with an outside lever and weight. The lever and weight arrangement is used to maintain exterior control over disc movement.

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许仕15 B条具有相同的形状和大小的SI - 15全系列是易于配置的堆叠或集群操纵系统。

SI-15B has same shape and size as the SI-15 full range which is easy to configure the system as stack or cluster rigging.

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