PC people are generally well-acquainted with tools such as fdisk, which are used to create and delete primary and extended partitions on hard disks.

使用PC的人通常相当了解fdisk这样的在硬盘上创建和删除主要分区和扩展分区的工具。

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Listing 3 shows the ContactDAO interface extended to use the JDO API to persist, query, update, and delete objects.

清单3显示扩展后的ContactDAO接口，可使用JDO API进行持久化、查询、更新和删除对象。

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Cannot delete extended DOS partition while logical drive exist.

当逻辑驱动器存在时，不能删除扩展DOS分区。

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