英语词汇“upper quadrant signal”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	upper quadrant signal
释义	upper quadrant signal 上向臂板信号机
随便看	relief globe relief goods reliefgraph relief grating relief grinder relief grinding relief grinding machine relief grinding mechanism relief groove relief ground relief height relief highway relief holder relief hole relief hole diameter relief holes relief image relief incision Relief Inlet relief in place relief intensity relief in the form money relief in the form of money relief inversion relief iron 好恶者，赏罚之本好意反成恶意好意番作恶肚肠好憎繁多，祸乃相随好憎者，心之过也；嗜欲者，生之累也好戏压轴，好酒封顶好戏在后头好戏耐看，好曲中听好戏还在后头好战者亡，忘战者危。前半天前半天儿前半宿前半年前半年儿前半晌前半晌儿前半月前半生前半辈