名词
中文翻译：主要信号
同义词：
['mainindication', 'primary signal']
例句：
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1. The main signal for the meeting isto discuss the budget.
会议的主要信号是讨论预算。
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2. The main signal of a stormis the rising wind speed.
暴风雨的主要信号是风速上升。
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3. The main signal fromthe satellite was lost during transmission.
卫星传输的主要信号在传输过程中丢失了。