expansion slot

基本解释

In general, must be in a PCI bus master expansion slot has a drive adapter.
通常，必须在某一总线主控PCI扩展槽中拥有驱动器适配器。
Edge connector: a row of etched lines on the edge of a printed circuit board that is inserted into an expansion slot.
边缘接驳器：印刷线路板的边沿上的一列蚀刻条子，作插入扩展插座上用。
It’s a slow trend through, however, as the I/O ports and disk controllers are often installed on the expansion slot as recently as 1995.
然而这种趋势发展缓慢，知道1995年，输入输出端口和磁盘控制器还经常安装到扩展槽上。
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Similarly, the phone also features 1GB of RAM, 4GB of internal storage and a microSD expansion slot.
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The Lumia 720 also marks the first time Nokia's added an expansion slot for microSD (up to 64GB) into one of its polycarbonate builds.
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Without an expansion slot there is no external sound capability. 4.
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a physical electronic interface provided in a computer system to enable extra facilities to be added easily at a later date