动切换变电所 automatic substation: 自动变电所; 自动变电站over throw: 后撑后翻肩上投球throw over: 翻越; 换接; 换速; 抛弃(计划等); 遗弃; 转换throw-over: 换接; 换速; 切换; 转换, 换向emergency throw over equipment: 事故转换设备下载手机词典可随时随地查词查翻译