名词
中文翻译：Unknown
同义词：
['pH determination', 'pH measurement']
例句：
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1. ThepH level of the soil must be determinedbefore planting.
在种植前必须测定土壤的pH水平。
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2. The pH determination of thesample is critical for understanding its chemical properties.
样本的pH测定对于理解其化学性质至关重要。
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3. The pH determination was done usinga pH meter.
pH测定是通过pH计进行的。