这句话怎么翻译?Key evidence here is that the quality system is defi

这句话怎么翻译?Key evidence here is that the quality system is defined,Key evidence here is that the quality system is defined, e.g. through documented procedures, and that it is effectively implemented, for example through the existence of quality records.这句话怎么翻译?这是ISO 17894上的一句话,怎么都翻不通,与船用可编程电子系统,质量管理体系有关.