短語詞組短語telescopic microphone boom 可伸縮的傳聲器吊桿telescopic c boom 伸縮臂telescopic hoist boom 翻譯telescopic placing boom [紡]伸縮式布料桿telescopic boom forklift truck 伸縮臂叉車;伸縮臂叉telescopic boom excavator 伸縮鏟挖掘機(jī)telescopic boom control circuit 伸縮臂控制回路 返回 telescopic boom