本合同经合同双方签署后生效的翻译：This contract signed by both parties after entry into force 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

This contract is effective when signed by the parties to the contract

This contract signed by both parties after entry into force

This contract becomes effective after the contract both sides signature

This contract shall become effective upon signature by both parties to the contract

This contract signed by both parties after entry into force