演出的晚上，主持人介绍到我，然后我穿过舞台走上指挥台，举起指挥棒示意大家开始。
The night of the performance, I was introduced, walked across the stage to the podium, and lifted the baton to start the group.
本文扼要介绍雷达观测、雹云识别、作业指挥、效果分析等部分主要技术规程。
The main procedures are briefly introduced here, such as radar detecting, hail cloud identifying, operation commanding, effect analyzing, etc.
他既可以向大家介绍机器人的工作原理，也能指挥乐队为大家演奏精美的乐曲。
The robot not only gives visitors an introduction into how it works but will also direct an orchestra to play elegant music.
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