Most libraries have open and closed stacks.

多数图书馆有开架和闭架两种书库。

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Some libraries still adopt a closed stacks system, which is not very convenient.

采取闭架借书的模式，不是特别方便。

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The Regional Library is organized into alternating stacks of open- and closed-accessed shelf floors.

瓦尔纳地区图书馆由层层交替排列的开架书库阅读空间和闭架书库档案保存空间组成。

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Rather, it houses an exhibition hall, the famed Rose Main Reading Room, and some 5 million research volumes many of them housed in closed stacks that occupy a space two blocks long, a quarter-block wide and eight stories high.

WSJ: Libraries Rethink Their Role in City