This is a special property of the HOLDER classes that are defined in the lsxsd.lss file.
这是lsxsd . lss文件中所定义的holder类的特殊属性。
The holder of that card will receive special service.
持有那张卡的人将可以享受特别的服务。
Disc holder removable for replacement of disc without dismantling the valve - no special tools required.
阀瓣支架可拆卸进行阀瓣更换,无需拆卸阀门,不需要特殊工具。
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