名词
中文翻译：零线
同义词：
['null line', 'zero point', 'null axis例句：1. The zero line is the baseline for measuring distances.（零线是测量距离的基准线。）2. The zero line divides the graph into two parts.（零线将图表分为两部分。）3. The zero line represents the starting point of the measurement.（零线代表测量的起点。）']
例句：
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1. The zero line is the baseline for measuring distances.
零线是测量距离的基准线。
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2. The zero line divides the graph into two parts.
零线将图表分为两部分。
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3. The zero line represents the starting point of the measurement.
零线代表测量的起点。