英语词汇elevator boom怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	elevator boom
释义	elevator boom 简明释义起重臂，升降机伸臂网络释义 1 ?起重臂起重臂短语 1 elevator bottom discharge boom 提升机卸载悬臂双语例句 1 The change in air pressure associated with a sonic boom is only a few pounds per square foot — about the same pressure change experienced riding an elevator down two or three floors. 和音爆有关的气压变化只有每平方英尺几磅——大约是坐电梯向下两到三层所感受到的气压变化。同近义词起重臂，升降机伸臂 cargo boom
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