本协议自双方代表人签字认可之时起生效。
The agreement takes effect upon the signature of the representatives of both parties.
本合同经各方法定代表人签字后生效，在合同各方的权利和义务执行完毕后失效。
This Contract will become effective after it has been duly signed by all parties' legal representative and remain in force until the rights and obligations of all parties have been fulfilled.
有权签字人可以为乙方的法定代表人或单位负责人或其授权的代理人。
The authorized signatory may be the legal representative, principal or its authorized agent of Party b.
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