Off the Shelf

Survey Network Processor 碰到的單字，譯點通找不到，wikipedia 上到是有不錯的解釋：http://en.wikipedia.org/wiki/Off_the_shelf 節錄如下：

When buying things, "Off the shelf" refers to products that have already been designed and made, compared to "made to measure" ("one-off", "custom-built", "custom made", etc.) which refers to products that have to be made to a special order.

Off the shelf products are generally cheaper and more quickly available than made to measure.