battery-supply relay的意思|示意
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电池供电继电器
battery-supply relay的网络常见释义
电池供电继电器 ... 电池供电|battery-powered 电池供电继电器|battery-supply relay 电池固定架|battery mounting ...
battery-supply relay相关例句
This AC electronic music door bell is composed of general electronic door bell, rectified power supply, relay and power amplifier and does not need battery to power it.
本发明涉及一种用交流电的电子音乐门铃，由普通电子门铃加整流电源、继电器及功率放大器构成。本发明不再需要电池供电。