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Above some temperature is going to be positive, below some temperature is going to be negative.
低于这一温度它是负数，我们一般忽略这些高阶项。
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- 来自原声例句
Above some temperature is going to be positive, below some temperature is going to be negative.
低于这一温度它是负数，我们一般忽略这些高阶项。
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