短语词组短语12In Spade Bore Bit Extension 在锹孔位扩展extension bit 接长钻;扩充位Address Extension bit 地址扩展比特Identifier Extension Bit 识别符扩展位;标识符扩展位;别符扩展位IDEextension bit method 扩充比特法E Extension bit 扩展位 返回 bit extension