名词
中文翻译：棕色环试验
同义词：
['Brown ring test', 'Brown ring method例句：1. This brown ring test is a simple and effective way to detect the presence of bacteria in food.（这个棕色环试验是一种简单有效的检测食品中细菌的方法。）2. The brown ring test is often used to determine the pH level of soil or water samples.（棕色环试验通常用于测定土壤或水样中的pH值。）']
例句：
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1. This brown ring test is a simple and effective way to detect the presence of bacteria in food.
这个棕色环试验是一种简单有效的检测食品中细菌的方法。
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2. The brown ring test is often used to determine the pH level of soil or water samples.
棕色环试验通常用于测定土壤或水样中的pH值。
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3.In this experiment, we conducted a brown ring test on some soil samples to see if they were contaminated with pesticides.
在这个实验中，我们对一些土壤样本进行了棕色环试验，以查看它们是否被农药污染。