inactive line
常见例句
- The third and fourth ports of exterior line default inactive.
第三和第四个外线端口为关闭状态。 - The system can set the 'data' line inactive if it has a byte to transmit to the device.
系统如果有一个字节要传输给设备，可以拉低数据线。 - The auxiliary device checks the 'clock' line. If the line is inactive, output from the device is not allowed.
辅助设备（指键盘）检查时钟线，如果时低电平，禁止发送数据。 返回 inactive line