名词
中文翻译：粘土指示器
同义词：
['soil indicator', 'clay tester']
例句：
-
1.The soil sample was collected from the top layer of the field.
土壤样本是从田地的表层采集的。
-
2.The clay indicator showed that the soil is rich in organic matter.
粘土指示器显示土壤富含有机质。
-
3.The farmer used the clay indicator to determine the pH level of the soil.
农民使用粘土指示器来确定土壤的pH水平。