[物理] 自动转换开关(自动双向开关) rotary throw-over switch: 交换开关throw over switch: 投掷开关; 投掷式转换开关; 转换开关throw-over switch: 扳倒开关; 投掷开关aerial change-over switch: 天线转换开关antenna change over switch: 天线转换开关下载手机词典可随时随地查词查翻译