名词
中文翻译：低点变化点
同义词：
['lower limit', "lower threshold例句：1. The company's performance has been steadily improving since the lower change point was reached.（自从达到低点变化点以来，公司的绩效一直在稳步提升。）"]
例句：
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1. The company's performance has been steadily improving since the lower change point was reached.
自从达到低点变化点以来，公司的绩效一直在稳步提升。
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2. The lower limit of the temperature range is -30°C.
温度范围的下限是-30°C。
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3.The lower threshold for a positive outcome is a certain percentage of success.
一个积极结果的最低阈值是一个成功的百分比。