求翻译：环委托合同由双方法人签署，并将资质证书原件提交给建设单位查验。委托合同不得由其分支机构、办事机构代签或通过个人、其他中介机构签订，否则环保窗口不予受理。环评合同中应明确项目负责人（签订机构的环评工程师，附环评工程师登记证书复印件），联系电话，签署合同一周内告知环保窗口。是什么意思？

Ring-delegated contract signed by both legal persons, and submit the qualification certificate for construction inspection. Delegate must not by its branches and agencies on behalf of the contract signed, or signed by individuals, other intermediaries, or environmental window is inadmissible. EIA contracts should be clear project leader (signed bodies of EIA engineer, in report of EIA engineer registration certificate copy), contact phone number, signed contract within a week to inform environmental window.