英语词汇“primary switching center”的翻译、意思、用法、释义-英汉汉英双解词典

单词	primary switching center
释义	primary switching center 初次转换中心
随便看	towing bollards towing bracket towing bridge towing bridge 带拖钩的 towing bridge带拖钩的 towing bridle towing bridle winch towing buoy towing cable towing capability towing capstan towing carriage towing chain towing channel towing charge towing charges towing chock towing chock bullnose towing condition towing conditions towing connection towing control towing to wing a bird towing ahead