求翻译：9.1 本协议壹式陆份，甲、乙、丙三方签字、盖章，自丙方取得国家相关部门对外投资批文后生效，具有同等法律效力，三方各持壹份，其余叁份由丙方留存备用是什么意思？

9.1 Agreement One type Lu, A, B, C tripartite signature, seal, to take effect from Party C to obtain foreign investment approval of the relevant state departments have the same legal effect, three parties hold one counterpart, the remaining three copies are retained by Party C. alternate

9.1 this agreement states, land-based, A, B, and C3 parties signed, sealed, and the C Party won the national departments after the foreign investment, has the same legal effect as the 3 parties, the remaining three states by C retirement alternate

9.1 this agreement-one land, signed and sealed by the three parties a, b and c, from the relevant departments of the State party made take effect after approval of foreign investment, have the same legal effect, third-party holding one, joined by the remaining party c retained the standby