求翻译：按照法律计算雇员的年资，年资以员工在加入公司时提供的工作经验和保险缴纳记录为依据；不能证明的工作履历是一个无效的是什么意思？

In accordance with the law to calculate employees' seniority, years of work experience and insurance provided to the employees joining the company pay records as the basis; can not prove work history is an invalid

In accordance with the law for calculation of an employee of the year, and years of service to their employees to join the company in providing the work experience and the insurance payment is based on records; it cannot be proved that the work experience is not a valid

The work experience calculates employee's period of service which under the law, the period of service when joins company provides by the staff and insures the payment recording is the basis; Cannot prove the work personal history is one invalid

Calculated in accordance with the law the employee's seniority and service provided to employees when joining the company based on the work experience and insurance to pay record; not proof of work experience is of an invalid

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