求翻译：几年前仅仅在几种“贵族”千兆产品中才能见到的技术，如堆叠性、QoS保证、可管理性、安全性等，今天，在任何一款普通的千兆产品中均已经实现，。是什么意思？

Only a few years before the technology can be seen in several "aristocratic" Gigabit stackability, qos assurance, manageability, security, and today has been achieved in an ordinary Gigabit products ,.

Several years ago just a few of the "aristocratic" 1000 gigabit products in order to see the technology, such as stacking, QoS assurance, security, manageability, and so on, today, in any of the ordinary in the 1000 gigabit products, has already been achieved.

Several years ago merely the technology which “the aristocrat” in a milliardfold product can see in several kinds, like pile up one on top of another the natural, the QoS guarantee, the manipuility securely, and so on, today, already realized in any section ordinary milliardfold product.

A few years ago only a few "elite" Gigabit products can be seen in technology, such as stacking, QoS guarantees, manageability, security, and so, today, in any ordinary Gigabit products have achieved.

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