1. The notary public required the testation of the document before it could be considered valid.
公证员要求文件的证明才能被视为有效。

2. The testation of the will was witnessed by two individuals.
遗嘱的证明由两个人见证。

3. The lawyer advised his client to provide testation of their income for the court case.
律师建议他的客户为法庭案件提供收入的证明。

4. The testation of the experiment results confirmed the hypothesis.
实验结果的证明证实了假设。

5. The company required testation of the employee's qualifications before offering them the job.
公司要求员工资格的证明后才能给予他们工作。

6. The testation of the product's safety standards was conducted by an independent third party.
产品安全标准的证明由独立第三方进行。