各层级对话和磋商机制 the dialogue and consultation mechanisms at various levels
循环子物体各层级 Sub-object Level Cycle
各阶级和各阶层 the classes and masses
当前已经有超过70%的攻击发生在网络应用层，各级组织急需要能够保证他们的系统安全性的帮助。
With over 70% of attacks now carried out over the web application level, organisations need all the help they can get in making their systems secure.
但有时可能恰好相反：组织中某个较低地位的人请求某个更改，在发生任何事情之前，该请求通过各级管理层一路上报到最高管理层。
But sometimes it can be just the opposite: a low rung in the organization requests a change, and the request moves all the way up the ladder to the very top before anything happens.
同各级管理层和员工进行有效的交流。
Maintains effective communications at all levels of management and staff.
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