field-validation characters

例句：

1. 1. The field-validation characters are used to test the accuracy of the data collected in the field.
   田间验证字符用于测试在田间收集的数据的准确性。
2. 2.The field-validation characters were developed to ensure the accuracy of the data collected in the field.
   田间验证字符被开发出来以确保在田间收集的数据的准确性。
3. 3. The field-validation characters are used to verify the accuracy of the data collected in the field.
   田间验证字符被用来验证在田间收集的数据的准确性。