求翻译：云计算是IT 产业的大趋势，它体现了IT即服务的思想。目前企业向“云”端迁移还面临相当多的问题，其中对安全是云计算落地的最大阻力是什么意思？

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cloud computing is IT industries, the major trends that it embodies the idea of serving IT. At present, enterprises to migrate "cloud" port is also faced with quite a lot of questions, of which the security is the biggest obstacle cloud computing landing

The cloud computation is the IT industry major tendency, it has manifested IT is the service thought.At present the enterprise the end migration also faces quite many questions to “the cloud”, in which to safe is the cloud computation landing biggest resistance

Cloud computing is the IT industry trends, which reflects the thinking of IT as a service. Current enterprise to "clouds" side of migration also faces considerable problems, which the security is the biggest cloud fell to the ground resistance