名词
中文翻译：负点
同义词：
['negative value', 'negative reading', 'negative sign']
例句：
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1. The stockprice has a negative spot today.
今天的股价有一个负值。
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2. The engineer calculated the negative spot of the gearbox.
工程师计算了齿轮箱的负值。
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3. The negative spot on the graph indicates a decrease in demand.
图中的负值表示需求的减少。