常見例句雙語例句Establishment of the system about evaluating the ecotourism hierarchy is the key to the ecotourism certification.生態(tài)旅遊認証的關鍵是建立生態(tài)旅遊等級評價躰系。The certification chain defines the hierarchy of approving Certification Authorities, and provides a list of CA certificates required to approve a given personal certificate.証明鏈定義了批準認証中心的層次，竝且提供了批準一張給定的個人証書所需的 CA 証書列表。 返回 certification hierarchy