这段话怎么理解比较好？！

飞花逐月

在一个客户的审核文件中，有关产品过程控制的维护保养中：
有四句话小妹不是很理解 请教一下各位大哥大姐
1.  Guidelines address how the facility will protect product when breakdowns occur and/or repairs are made in product zones.
2.  The guidelines describe product disposition when affected by maintenance activity.
3.  Guidelines should be in place that describe how maintenance will handle tools and equipment when repairs are being made.
4.  Guidelines should exist that how describe how tools are to be handled in raw vs.finished areas to protect products and avoid potential cross contamination from maintenance activities.
小妹水平有限，麻烦翻译一下，谢谢大家了

farina

1、准则指明了当故障发生或生产区修复时设备如何保护产品。
2、准则描述了受维护影响时产品如何处置。
3、准则应放在合适的位置，当维护进行时好描述工具及设备如何处理。
4、准则还应有描述未加工区和成品区工具处理上的差别，以避免维护保养带来的交叉感染。


如有不妥之处，请见谅