A single ultrasonic transducer is switched cyclically between transmit and receive mode.
超声换能器是一个单间循环切换传输和接收模式。
In a receive mode, either the sum channel or a difference channel of the panel combiner is chosen as the active channel.
在接收方式下,选择面板组合器的和通道或差通道作为工作通道。
Problem 2: You receive an error that the replicated table is in alter mode.
问题2:收到错误说复制表处于alter模式。
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