However, most programs can be quite strict and only accept a very limited subset of e-mails to work well.

不过，大多数的程序可以是非常严格的，只接收一个特别受限子集的电子邮件以正常地工作。

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Compact HTML (cHTML) - a limited subset of HTML with that provides easy access for mobile phone environments.

压缩格式的HTML (Compact HTML, chtml)—html的有限子集，通过它可以为移动电话环境提供简单的访问途径。

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As an example, a natural language interface (NLI) having a limited subset of English to a specific expert system for database design (ERGTORS) is designed and implemented with TURBO PROLOG on IBM PC.

作为实例，为数据库设计专家系统(ERGTORS)设计了一个具有有限英语子集的自然语言接口(NLI)，并在IBM PC上用Turbo Prolog实现。

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The very biggest U.S. financial institutions seem to have attracted a force field around them, guaranteeing that there is at least a limited subset of banks that are too big to fail.

FORBES: The Big Banks

The loan modification, or rate freeze, would apply to a limited subset of subprime borrowers who meet a series of criteria, not least of which is that they must have paid their loans on time.

FORBES: Magazine Article