求翻译：Library Viewer 包含3个根节点：分别为Modelica，Public，CurrentUserName。Modelica根节点下为Modleica标准库，在用户登录时可选择加载哪个版本的MSL。Public根节点下为用户共享的模型。是什么意思？

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Library Viewer contains 3 root nodes: Respectively is Modelica, Public, CurrentUserName.Under the Modelica root node is the Modleica standard storehouse, registers when the user which edition can choose loads MSL.Under Public root node for user sharing model.

Library Viewer contains the root node 3: Modelica,Public,CurrentUserName, respectively. Modelica is Modleica standard library under the root node, you can choose which version of MSL loaded when a user logs on. Public shared model for the user under the root node.

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