off-board meaning in English

场外的
离板的

Off - floor trading ; off - board trading
离场交易
You may also need to add an off - board ide controller so that you have the extra ide channels you require
您可能还需要外加一个ide控制器，以便提供您所需的额外ide通道。
Conductive charging for electric vehicles - part 2 - 4 : communication protocol between off - board charger and electric vehicle ; german version env 50275 - 2 - 4 : 1998
电力车辆的传导充电.第2 - 4部分:外部充电器和电力车辆