Some mainframe systems , access providers, and mailer software will even delete messages if they are left in the electronic in-or out-box too long.
如果信息被滞留在电子收信箱或发送信箱的时间过长，某些大型机系统，存取供应者和电子邮件软件甚至会把这些信删去。 收藏。
Some services (for example, those implemented using mainframe or ERP systems) may not be available to developers in unit test environments.
在单元测试环境中，有些服务（例如，那些使用大型机或 ERP 系统实现的服务）可能对开发人员不可用。
While many organizations have provided high availability systems on centralized e.g. mainframe platforms for some time, the number of critical applications now being deployed on distributed e.g.
虽然一直以来很多组织在集中式的系统(例如大型机)上提供高可用性，但是现在越来越多的关键性的应用程序被部署在分布式(例如unix, Windows)平台上。
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