Using the analogy of a house to represent the system, you decide to carve out a piece of your front door to give your pets' easy access to the outdoors.

我们可以使用房子来代表该系统，您想要在前门上开出一小块作为您的宠物的通道。

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That makes it easier to get in and out, for access is from the front via a large, transparent door-a traditional means of ingress for bubble cars.

这样方便上下车，因为出入是经由大型透明门(泡泡车传统意义上的入口)从前面进行的。

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A lockable panel provides access to a front cooling fan, and a lockable, shielded door protects and affords easy access to the drives.

可锁定面板内装配前散热风扇，还有可锁定屏蔽门不仅保护驱动器，还可以轻松设置驱动器。

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All of the new line of computers boast a 250-watt power supply, a sliding front door allowing for easy access to four USB ports and dual optical disk bays.

FORBES: Magazine Article