double return circuit power supply双: two; twin; both; dual回路: return circuit; return; loop ...供电: supply electricity; power su ...电源: source; current source; elec ...单回路供电: single circuit power supply下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:双回路供电电源，即可在微信中查询翻译
