Defines all major device class constants.

定义所有的设备类常量。

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As a major device in naval replenishment ship, type selection and design of sea alongside replenishment device is very important.

作为综合补给船上重要设备的海上横向补给装置，其选型设计十分重要。

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At the top is what's called the upper level, which represents the highest interface of the kernel for SCSI and drivers for the major device types.

顶部的那层叫做较高层，代表的是内核针对SCSI和主要设备类型的驱动器的最高接口。

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It will be another major device people INTERACT with, not just passively consume as they do now.

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Qualcomm has unique visibility to global 3G device volumes because of its broad chip client base and its licensing agreements with all major device vendors.

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In this week's Distro we've brought you everything you need to know as we lead up to CES with our in-depth previews of every major device category.

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